I get that, and agree. I mean these high dollar lawyers that take these cases pro bono. I don't see the return for them other than fame.
attorneys are like actors: there's no such thing as too much fame.
Most certainly don't look good, especially when their client is led away in shackles.
How do they look bad for defending human garbage that the public prefers seeing led away in shackles, because 'somebody's gotta do it', right? [And they don't gotta do it pro bono, either.]
I also doubt they do it for another other reason than the attention.
Yeah, probably 99.9% do it for the media attention, but there are some who practice according to their principles, and those few are on the defense side of the table. [The prosecution is for political wannabees, lol.]