That description sounds like the U.S. senate before there was a constitutional amendment to implement directly elected senators. The indirect election of senators was used to ensure that senators were selected to be favorable to elite interests. Direct election was intended to make it more responsive.

https://en.wikipedia.org/wiki/Seventeenth_Amendment_to_the_U...

However, I have many criticisms of the continuing undemocratic nature U.S. Senate (I think it should be dissolved entirely), but that reform was a good step.

It's true that the upper house will be less party political, but that is because everyone inside is very comfy with each other and aligned on policy that favors the wealthy.

It's also the same problem with the European Commission. If anything, it's worse than hereditary peers. At least the peers are obviously illegitimate.