In short Bitcoin will help many of the super rich become richer...that's all.
Unfortunately I'll have to agree with you here. The current state of bitcoin basically means that the rich becomes richer. Bitcoin unfortunately is being used for illegal activities, especially money laundering. There is really no use for me to deny that, even as a die-hard bitcoin fan.
However, that does not mean that we as a community cannot make bitcoin for the better.
Projects that provide banking via bitcoin to the unbanked is an example of stepping towards better bitcoin usage in my opinion.
And although I agree with you on the front that bitcoin is used for sheltering dirty money, i do believe that bitcoin will be mass adopted, once fiat dies.