Conversely, if we are not to saddle the Arab world with such responsibility, can we also then state that our society as well is blameless when it comes to those individuals among us who commit crimes?

That is reasonable, yes.

When Dutroux was arrested after he kidnapped 6 children (4 of them died in caves, abandoned), he and the persons near him weren't the only ones tried. The judiciary system, the police and some ministers were also tried and a number of dysfunctional habits were radically changed.
Journalists who blamed the police in general were tried for diffamation. Yes, some policemen didn't do their job right, but it doesn't mean everyone of them did wrong.

The same way, we can't blame muslims or arabs for 9/11 nor can we blame the west for wrongdoings of a few westerners.