I think any T who has had extensive therapy themselves understands the power they wield. That's one of the reasons I think it's an essential part of training.
Certainly in my case I think my experience with being a client will have a massive effect on my ability to understand my own clients. I hope none of them are as crazy as me, though.
ETA: this is something I was already thinking about today, since it struck me how odd it is that a person simply acknowledging my existence could fill me with such joy and comfort... he has
such power. He could hurt me so terribly. He could ruin my life. Pretty terrifying really.
(Or he can just say 'I remember you, you exist' and make me feel amazing

)