I'm not American but Canada is heavily influenced by American culture. To the point many Canadians think the Untied States constitution applies here.
I grew up believing my whole life that the United States was a place where laws at least theoretically applied to everyone. And that the American government was one of checks and balances where the president had frustratingly little power at times. Where those in power were not like absolute monarchs and were held accountable for their actions and could be removed from office if need be.
But now? It looks like whoever designed the system neglected to include a protocol for what to do when the president and their lackeys disobey the law. Or, if there is a procedure, it's just not being implemented for some weird reason.
Imagine if the rules of hockey stated that you mustn't use physical violence but there will be absolutely no penalty whatsoever if you do. What do you think the result would be? What's the point of rules without an enforcement mechanism? I was taught in behavioural psychology that saying "don't do x" isn't a rule, saying "if you do x, y will happen" is a rule. Rules require consequences!
Every time I see a headline saying Trump's actions are illegal, I feel like I'm watching a crook break into houses, rob them, shoot people, and burn the house to the ground while the police stand there and say "wait, that's illegal". They're supposed to be protecting society by fucking doing something to stop the criminal! To be clear, the police are a metaphor here. I dont expect police officers to stop Trump, I expect congress and prosecutors and judges to do their damn jobs and enforce the law.
I think you're framing it backwards, in the title.
Nonaccountability is assumed to be a "right" intrinsic to authority, & the greater the authority, the greater the non-accountability.
THAT is the problem.
NOT that the most-authority has the least-accountability, but the WHOLE MECHANISM of accountability-only-for-the-bottom-nonauthorities.
Class-decadence in the upper levels is the same mechanism.
Privilege means "inherent" nonaccountability, according to group-animal politics ( herds, packs, political-parties: it's all the same social-mechanism ).
The ONLY method I can see for correcting this fundamental-political-fact ( of both left & right ), is to remove accountability from political-"will", & put it in some automatic ( like decision-trees, or something ) mechanism, that doesn't obey ANY social-pressure: it enforces against integrity-violations automatically.
There is no alternative: human-nature simply doesn't have any spine/uprightness, therefore accountability has to be intentionally placed in automatic-mechanism, instead.