The mere fact that btc deals with huge amounts of money means that it's impossible to think it won't be prone to corruption. It's everywhere even with small communities. The very definition of corruption applies to bitcoin if you think about it. Hopefully it just doesn't bloe out of proportion that will lead to btc's ruin
I think that near any valuable asset there will be talk of corruption. Bitcoin itself can be used for a variety of purposes. Someone uses it for good, and someone for illegal activities