Why do I never see people who are better than me fight each other?

There's a good dozen people (Xbox) that I trade back and forth in terms of doing better or getting beat by.

There's another dozen people that are simply better than me, and the most I can hope for is to make their victory as bitter as possible.

But I never see any of those latter dozen people fight each other.

I never get to spectate on people who are better than me and take internal bets on who will win.

It seems the only time I encounter people who are way out of my league, they're just dunking on me. I don't get to see the guy who dunked on me in one match pull up on the 3-team that dunked on me another match.

I don't understand why this is. I think the least I deserve for my efforts is to see Thanos fight to the death with Odin. But it never happens.

Are these people on different schedules? What is preventing the showdown? I don't understand. It hurts.