The justice system is flawed, but I don't see how adding a political dimension makes it any better.

Because fundamentally the idea is to be a democracy.

The laws should represent, what the people want. Not a small caste of lawyers and lobbyist what it often rather seems to be.

Presidential power is a direct way to represent peoples wishes. Or well, could be, if the voting system wouldn't be flawed as well ..

Unjust? Broken? But adding one broken thing to another broken thing will do nothing to fix any one of them.

Do you have concrete ideas on how to improve?

And till those steps are implemented, don't you think you would enjoy it, if the next president would pardon Snowden, or your personal favorite case of unjustice?

As if the laws and justice of a nation are a questions of personal favorites! Maybe I have read too much enlightenment philosophers, but I happen to think in terms of general principles in this case.

This might be a good first step, too. Read more books from a time when people were struggling with arbitrary justice.

So you don't have them. That's ok. And thank you, but I did read a lot of books. History, politically, .. I just apparently came to different conclusions, but it is ok for me to not take this deeper here.

If my server is unreliable, adding an unreliable backup is better than nothing.

Maybe, but do you think it is good enough?

That really depends. There are times when adding backups or "safety" features can make circumstances worse.

Exactly, I've had cases when half-assed "backup" components led to cascading failures that were horribly difficult to troubleshoot.