This particular issue is not of that much interest to me in comparison to how things should be in principle, namely:
1. Results (pretty objective term) should be favoured by the management over "hard work" (pretty subjective one).
2. Badmouthing your peer before the boss because you think "they don't work hard enough" is bad, period. You're certainly not in position to say who works hard enough and who doesn't, unless you are the manager and it's actually your job to make such assessments.
I don't know how to put it more simply.
It truly baffles me that anyone would disagree with these two.
If you wanna talk about the case at hand, if we have to be rational about it, I think SBell's action was wrong, aside from point 2, also because the average boss is more likely to get annoyed at him for badmouthing his kid than actually do something about the supposed issue (much less promote SBell for being such a great employee). And the hypocrisy was already pointed out, as well.
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