First, I wouldn’t call Stannis’ political thought as representative of the noble class – he’s got some pretty unusual views about the nature of the monarchy.
Second, the reason why Stannis viewed it as a “hard choosing” is that, as a pretty strong legalist, he felt particularly torn between fidelity to his king and fidelity to his family.
Third, I don’t think it does have an implication there. There’s too much evidence going in the opposite direction.