As presidential donor lists and many recent actions have shown, federal politics and regulation in the USA is completely captured by banking interests.
The quickest way to get the US government off Bitcoin's back and even encourage its usage, would be for a GS or JPM be the underwriters for a wave of high-profile Bitcoin IPOs.
The Bitcoin Foundation should consider redirecting its recently-announced lobbyist from DC to Wall Street. That's likely to be more effective and far quicker.
Except you seem to forget that the Federal Reserve Note (aka US dollar) is actually the racket that ultimately belongs to Wall St. (look up who the shareholding of the Federal Reserve Banks, particularly FRB New York, ultimately trace back to ... i.e. follow the money). They are unlikely to be supporting a competing product, bitcoin, to their contract law debt notes that have been granted reserve currency status by the complicit US congress and administrations since 1913. They have gotten riches beyond wildest dreams from running the federal reserve note racket.
True. But I'll guess that, at some level, consciously or not, most crooks in the investment banks and in government can surely sense that the unlimited money printing racket and debt-based system is on its last legs, and not likely to outlive this decade. Perhaps the smarter sociopaths in those circles will figure out which way the wind is likely to blow, and try to diversify into the future economy while they can still leverage their legacy monopoly.
Now, that I can appreciate. The rats will be the first to scurry from the sinking ship. Until then I'm unsure that bitcoin really needs them in order to succeed, I would not be upset if they were the last to arrive to the party ...