Carl Rogers lessons for photographers?

Carl Rogers in writing on therapy wrote,"These three conditions are the therapist's congruence or genuiness;unconditional positive regard, a complete acceptance; and a sensitively accurate emphatic understanding."
How far does this apply to good portrait or party photographers? If I talked about clowning I know that a good clown must be congruent, be true to his own humanity(What he thinks,feels and says must be consistent). It is that which translates effectively to an audience. In individual relationships this consistency helps create rapport.
People are reading each other all the time both consciously and unconsciously. They see signs of whether you like them or whether you appear uncomfortable etc. Accepting people for who they are is part of the rapport process, as is having a feel for others.
A good people photographer needs these attributes.