This thread's name appears to be more flame bait than actual legitimate question.
Ignoring that, I would argue that it easily does. Even if one were to completely dismiss the idea of God in general, some (not all, unfortunately) of the people who do believe in a religion are likely to try to follow whatever commandments are listed as guiding principles for said religion. Generally these commandments are things such as "do not steal," "do not lie," "honor your father and mother," and other things that involve admirable behavior towards their fellow person. I would call that beneficial. Heck, if every person in the world subscribed to the latter six of the ten commandments, we'd all be in a much safer place.
That said, there are unfortunately those people who use religion to justify actions that are incredibly harmful towards other. I suppose you can ask the question as to whether the nutjobs who use religion to justify acts of terrorism outweigh the benefits of those who follow morals advocated in their religion, but to be perfectly honest, I think that the people who are out to terrorize/commit atrocities are going to do so regardless of religion or not. I think the Crusaders would have been more than willing to find another excuse to retake land from Muslims regardless of whether it was their holy land or not. Osama Bin Ladin was likely upset enough at the US for their actions in the 1990s to attack the WTC regardless of whether he believed in killing "infidels" or not. Religion is just the first easy excuse that they could find. They'd come up with another one even if it didn't exist.
