In a previous life I've employed contractors and software engineers to run a criminal website. Motivations for my guys were that it was well paid work that was technically challenging in order to evade enforcement agencies, and was 'fun' in that respect; they were "sticking it to than man (my service was regarded as moral by all my users & others); and there wasn't so much work about that they could pick and choose; lastly, I was a good employer because I had to be!!