Cool idea, though I hope this doesn't turn into a status game - people trying to obtain the "most prestigious" mentors even though they may not actually need the advice or mentorship themselves.
I think it's incredible how people can intuitively learn these skills. People who are considered "likable" probably have developed these qualities through social experimentation, paying attention to others' reactions in the forms of tone and body language. It demonstrates a very high level of social awareness and emotional intelligence.