"These options did not add any real value" made me smile. That's the Windows 11 tagline!

If they've got a billion dollars they also own their own track and can pay other drivers to lose races against them.

You're not entirely wrong in that philosophy. At best we can hope for allies some of the time, but typically that arrangement will last only when mutually beneficial. We're not owed anything, and that includes loyalty, allegiance, love etc.

I think the majority of people we experience in a lifetime will be parasitic, and will take infinitely more than they have the capacity to give. Even the "good ones".

I think it's fine to feel what you're feeling, you have your eyes wide open and are seeing relationships for what they are, without idealism. How to reconcile that understanding with a happy, fulfilling life is another thing entirely.