Tax evasion helps the wealthy a whole heck of a lot more than it helps the impoverished, so I'm not sure it helps to even the score on that count. Avoiding regulation can go either way - reducing barriers to entry by circumventing regulatory capture is a plus (though the wealthy will be in a better position to enter), reducing the pricing in of externalities is a minus (and the wealthy will be best able to exploit this).
If we had a strong democracy I'd support your viewpoint here. But in our 2-party oligopoly gov't, the general voters' interests are typically secondary to the wealthy's. Bitcoin helps even the score.