Yeah. I just get the mental image of Butler carefully researching the law code to find out who he could poke in the eye with relative impunity, and then taking great satisfaction from the eyepokes. XD
(As far as the corruption on the side, it's never been firmly established that Butler had anything to do with it. This is not to say that he did not have anything to do with it, as he was quite good at finding loopholes. The obvious fact that his own brother was firmly enmeshed in the corruption business makes it rather likely that Butler's hands were clean only in a strict-letter-of-the-law sense, rather than the spirit-of-the-law...)
ETA: I've related this anecdote before, but it bears repeating in this connection... When Farragut's force collected off New Orleans preparatory to the April 1862 attack, they were suffering from a bit of a coal shortage (this was not unusual for the West Gulf Blockading Squadron, at the very tail end of a long supply line to the North). Butler heard of it and offered Farragut a bunch of coal that Butler had used as ballast in his troop transports instead of the more-usual stone or sand. Butler had figured that the price of coal would go up during the duration of the New Orleans expedition, and had done a bit of speculative investment on the assumption that he could resell the coal upon return to Northern ports at a bit of a profit. He of course rationalized this as a way of defraying part of the cost of the expedition on the part of the government, but I don't doubt he would have taken a (perfectly legal) agent's fee along the way.
However, Butler appeared ready to part with it in the interests of furthering the success of the expedition (no doubt he had a way in mind to recoup his losses). Farragut, bemused by this, asked if the direct transfer from Army to Navy wasn't against regulations, to which Butler responded that he never read the regulations and moreover would never do so, so he'd never know if it was against regulations or not. (And that's the part of this funny story I've always found most difficult to swallow. I'd bet good money that Butler actually had the regulations committed to memory and knew exactly what he could get away with...)