We have a local gang organization that does charity drives. Even if some of those individuals promoting a good public image weren't involved, the organization goes as far as trafficking young children. Grew up around it unfortunately. Yet ironically, I have people vehemently defend them as arbiters of good like they're vigilantes or something because they haven't seen what radical effects these people are pushing into our world.

That's much further on the scale of course, but we can ask the same question still: Is the good that this one meso-group supplies negate the evil that they're supporting?

Could all of these wonderful people be working at another facility, providing you with the same quality of service minus the bad moral after-taste? Yes, but only if they're obligated to work somewhere else. Otherwise, why change when they're getting so much support from the people they serve?