People are dropping from uni's to go join ISIS. The guy who perpetrated the san bernardino attacks was a born in the US and was a government worker, his wife was from a fairly influential family. The Boston bombings were committed by 2 fairly normal teenagers that weren't in any form of distress. Bin Laden was part of one of the most richest families in Saudi Arabia.

While it's true that many disfranchised individuals turn extremist it's also true that just as many of those who do are very privileged. People don't decide to join ISIS because they are poor, the do so because they are influenced to do it in a very methodical and well financed way.