People can be exploited in ways other than sexual or financial. Some therapists appear to need client adulation to feel good about themselves. They love-bomb or attention-bomb the client, which traps the client in dependency, and the therapist feeds on the worship for as long as it's workable. Or they feed on the controlled and risk-free (for them) intimacy. I have experienced this. Doesn't have to be intentional or malicious.

Also I think therapy is exploitive generally. Their marketing is predatory, with many wildly exaggerated claims and promises aimed at vulnerable types. Finally, they say, you will get the understanding and love you deserve! Call today!