Yes, It's in the one-on-one situations in the consulting room that the therapist's presumed authority might --in my experience, often does --become a detrimental factor. Though the authority in group therapy, too can be detrimental.

That then gets into the perhaps more general questions about power imbalance, etc., in therapy.

I think It's likely that reducing harm in therapy may come more from looking at the potential for harm that the structure sets up, and changing that, rather than focusing on individual therapist misbehavior. Though certainly in some cases we've heard about on this forum therapist misbehavior has been gross and inexcusable and probably not the effect of context, although the context may have contributed to it happening.