People are complex beings though.  It is perfectly possible to be "normal" in some areas of your life and "deviant" in others.  That doesn't make one part an act.  If it did, then which part is the "act" - the normalcy or the deviancy?  People follow deep seated drives and some are unable or unwilling to override these with logic or empathy or social responsibility.

Powerful men (whether this power is conferred through birth position, wealth, fame, incredible looks, whatever) have since the beginning of time used that power to get sex.  Women, since the beginning of time, have been attracted to powerful men because it confers advantages for any future offspring.  That doesn't mean we find it socially acceptable where youngsters below the age of consent are concerned of course.