I'm not claiming they are upstanding members of society but rather that if one is to improve conditions for sex workers trying to punish or shame clients into being better people is not going to help much. If everyone stopped buying sex tomorrow the injustices of capitalism that drives sex workers to sell sex in the first place would still be there.

Sending cops to chase clients is a bandaid. At most it will remove an unsightly manifestation of class society from public view. Giving sex workers a viable alternative will do much more material good.