A name for the tendency itself, to express disapproval of failure in the context of competition or the social ladder? I am unsure I can answer that...but let's see if I can help make a step in the process :-)
This excerpt was taken from LINK and specifically references Friedrich Nietzsche, The Genealogy of Morals I:X. 171
Whether it is through intellectual superiority or in terms of brute
strength, the nobles always emerge on the top of the social hierarchy.
The triumphs come to them naturally. Any obstacle, any challenge, or
any opposition is overcome effortlessly. In a sense, the nobles see
their enemies and opposition as a welcome challenge that measures
their own strength and nobility, and helps them to “affirm themselves
even more gratefully and delightedly.”
I think, that the example you provided demonstrates a self-serving approach. There may be a correlation to the behavior and the social hierarchy. There's always a contrast to which we hold ourselves. What you describe, affirms the social superiority by making a sharp contrast against the failures of others; yet, to condone such actions, could easily be considered a weakness.
Could it be as simple as arrogance with a big scoop of ignorance? Kicking down to kick yourself up? A form of selfishness to enrich the ego and brag about not being the example in front of you, that so obviously failed, why? Because I would have done that much better? Is that the implied message being given here? Are they just opposition to be trampled, challenges they can dare speak against as they now failed in front of their eyes? Or is it much less personal? The judgement against failing, as failing is not acceptable, harsh but very true for survival and not evil per se. To appear better, as a noble, by the failure of others, for both a mob and a single person, is that not just false justification of your own superiority, so, arrogance?
Perhaps another may find the word with this description, it eludes me as well as it frustrates!