For one thing, it's impossible to separate the myth from reality and the myth is certainly going to trump anything that approaches reality. His life was so uninteresting nobody bothered to even begin writing anything down about him until at least 70 years after his death. We have more factual information about Plato who lived centuries before.
The money changer story is one of those that almost certainly never happened. But for the sake of argument, let's assume it did happen. These were people who would have been scamming people out of their money in exchange for religious approval. In other words, not that much different from what Jesus himself was doing. According to the bible, his ministry lasted at least 3 years and during that time he would have had to provide for himself and the people in his organization. Unless one believes he was hocus pocusing up all their worldly supplies, that takes money which came in the form of donations. He would have been selling the conveniently unverifiable promise of atonement in exchange for cash. If you think about it much, that makes him more establishment and less valuable to society than the money changers were. At least they were providing an actual service, albeit one that did take significant advantage from their clients.
The anti-establishment part about Christ that probably resulted in his execution was his messianic claims. This would have probably been viewed as blasphemous by the Jewish authorities.