I think jealousy in show business is a direct result of the that there are only so many jobs to go around. If someone else gets more attention, they get the gigs and you don't. Those circumstances are exactly what you'd set up if you wanted to turn someone into an attention-seeking jealous monster, because now that's practically their job description.
Can we regain the human goodness in those circumstances? Can we have "show friendliness" rather than "show business"? Probably not, as long as there is limited money to go around, and money is always limited, one way or another.
Mokalus of Borg
PS - I couldn't make a living in Hollywood.
PPS - I'd love to act, but I wouldn't handle being a celebrity.