I think calling them ideologues is overly generous for most American politicians. They're vehicles for influence via bribery (which is usually done in a technically legal fashion).
I think that depends on whether you can vote for them or not. To the non-voter they are definitely ideologues.
> (which is usually done in a technically legal fashion)
Alas, the Roberts court effectively ruled that it's not really a bribe if it falls short of the third party saying they want the government official to vote/rule a particular way for a particular price, the government official does as asked, and he/she sends the third party a written invoice for services rendered.
Even should that happen, I'm pretty sure Justice Thomas would find the larger offense is that the invoice failed to include sales tax.
Remember our Supreme Court's recent bribery scandal wasn't that a number of justices were accepting gifts but rather that they hasn't disclosed them properly. We're perfectly OK with third parties bribing the judges on our highest court so long as the judges fill out the correct paperwork.