I love this. I've been self-employed for decades. We all have worked for clients we don't necessarily like. We often refer to ourselves as "whores." It is just as impossible to work only for people you really like all the time as it is to be purely vegan.
There is nothing wrong with prostitutes or anyone else offering services for pay. If the terms are clear, no children are involved and no one is exploited, who cares what the service is?
For the record: I'm vegan and I fucking hate the "vegan police."