Who knows for sure about Satoshi? But consider. Anyone smart enough to start something like Bitcoin, and a person who also did it, is smart enough to know the kinds of repercussions to the world banking systems that he might have started, doing what he did - Bitcoin. If he didn't understand the potential shock-wave, and the far-reaching effects his Bitcoin might have on the world, he probably wouldn't have been smart enough to design, build and implement it.
Odds are that there never really was a Satoshi. There probably was a main mover of a group. The group probably set things up to look like there was a Satoshi. They might have even figured out a climactic end for him so that they will be protected should anyone come close to finding the fact that there was a group.
Personally, I subscribe to the idea that the Satoshi group is part of some wealthy banking group or family that doesn't like the direction that the world banking cartel is steering the world into. What these people have given us is the opportunity to innovate beyond our wildest former expectations. Let's take it and run with it while there is time, before the bankers of the world use it to enslave us entirely, or else to destroy it all.