Crying for joy is acceptable, but crying out of disappointment is not?

For crying out loud, what are we debating here? Perhaps the issue is more about being a "good loser," and the crying is being viewed as a less than gracious acceptance of the vicissitudes of fate. It may also indicate a problem of perspective: Losing a family member or a close friend warrants tears, but losing a golf match doesn't. If the least disappointment produces tears, doesn't that somehow cheapen the tears shed for real tragedies?