You are right, the "religious teachers" (Muslim clerics) usually do not become suicide bombers themselves. However, it is not just the Muslim clerics who incite the youth to become a martyr for Islam but even the parents. You can view videos online especially with Palestinian parents indoctrinating their children to become a martyr (shahid). It is a great honor according to Islam.
Army Brigadier General John Custer, who is the is head of intelligence at central command, responsible for Iraq and Afghanistan remarked on 60 minutes about recruitment on the internet, "You start off with a site that looks like current news in Iraq. With a single click, you're at a active jihad attack site. The real meat of the jihad Web site, Jihad Internet. Beheadings, bombings, and blood. You can see humvees blown up. You can see American bodies drug through the street. You can see small arms attacks. Anything you might want in an attack video. Next link will take you to a motivational site, where mortar operatives, suicide bombers, are pictured in heaven. You can you see their farewell speeches. Another click and you're at a site where you can download scripted talking points that validate you have religious justification for mass murder," he explains. The number of Internet sites has exploded since 9/11. It's estimated there are 5,000 today. Custer says anyone watching them could actually believe the U.S. is on the run."
Do terrorists "abuse" Islam or does Islam abuse terrorists? I wonder what Ludwig Witgenstein would say?
There are many people who would like to believe that Islam is a peaceful religion and that it is only a handful of extremist terrorists who kill non-Muslims, but is this true? Are these terrorists "muhariboon" (killing NOT according to the rules of Islam) or "mufsidoon" (evildoers)? I think not. Those who kill shouting "Allahu akbar" are killing in the name of Allah, for the sake of Allah, according to the rules of engagement of the Qur'an.
Many articles debate that the verb "jihad" means struggle and not "holy war". However the Quran also use the verb "qitl" قتلو meaning kill which is sometimes translated as fight.. The main incentive for a Muslim to become a suicide bomber is the Qur'an itself.
9:29 Fight (qatiloo قاتلوا ) against the people of the book _ those of them who do not believe in Allah and the Last Day...
33:61 Cursed are they! Wherever found, they will be captured and killed in a carnage (waquttiloo taqteelan وقتلوا تقتيلا ).
8:39 Fight (waqatiloohum وقاتلوهم ) against them until ..... faith becomes the domain of Allah exclusively.
similar to:
2:193 Fight (waqatiloohum وقاتلوهم) them till corruption and repression cease, and until faith in Allah (and justice) prevails!
4:76 Those who believe, do fight for the sake of Allah ... (yuqatiloona fee sabeeli Allahi يقاتلون في سبيل الله )
4:84 So, fight for the sake of Allah (faqatil fee sabeeli Allahi فقاتل في سبيل الله ). You are accountable for none but yourself. But urge the believers (to fight). It might just be that (by your hand) Allah will curb (and curtail) the might of the disbelievers...
9:111 Allah has certainly purchased from the believers their life and their wealth in return for paradise. They fight for the sake of Allah (yuqatiloona fee sabeeli Allahi يقاتلون في سبيل الله ) ; they slay and are slain. (fayaqtuloona wayuqtaloona فيقتلون ويقتلون )
61:4 Indeed, Allah loves those who fight in His path (yuqatiloona fee sabeelihi يقاتلون في سبيله )
Not only is fighting and killing non-Muslims advocated by the Qur'an but it is done for the sake of Allah.
9:123 Fight ( qatiloo قاتلوا ) the unbelievers who are close and dear to you. Let them find in you a (firmness and) harshness (of resolve)....
9:12 And if they ... malign (and defame) your faith, then fight (faqatiloo فقاتلوا ) the leaders of disbelief
The Qur'an even promises victory even when the unbelievers (non-Muslims) outnumber them 10 to 1.
8:65 Oh prophet! Urge the believers to fight (alqitali القتال). If, among you there are twenty patient and steadfast men, they would triumph over two hundred. A hundred of you would overcome a thousand unbelievers, since they are a people who do not understand.
So, I would say, warfare/killing for the sake of Allah is an expected product of Islam. As long as Islam exists, so will killing.
4:92-93 It is not (conceivable) for a believer to kill (yaqtula يقتل) another believer _ unless it was (unintended, accidental or) by mistake... Hellfire is the punishment for anyone who kills (yaqtul يقتل ) a believer intentionally and willfully. He shall stay there forever. He incurs the wrath and the curse of Allah. For such a one, He has prepared the severest (most awful) torment.
Any other time that killing is mentioned in the Qur'an it is specifying the circumstances in which a person may be killed.
17:33 And do not kill anyone. Allah has prohibited it, except when it is rightful and befitting
5:32 ... “If someone kills a human being _ unless as a penalty for murder, or unless it is to prevent the spread of corruption in the world _ it is as if he has killed the entire humanity.