I got to see a change in the criminal law, in real time, that shifted the window on how sex workers are treated in my state. Agencies that tended to treat them as perpetrators, even when they were victims, had their behavior changed the most. But even the more progressive police departments, and of course any number of labor- and benefit-related agencies, also got a few notches more understanding and accepting.
TL;DR: sex workers are people, sex work is work, and the road to utopia is paved with extremely boring legislation and administrative decisions.