Sure it can. Apple, Google and Microsoft get millions of impressions every day and everyone accepts it. Just because it's uncomfortable for you to think about doesn't mean that it's not happening, at-scale, this very minute.
If your OEM decides to serve you ads, you don't get to complain. The alternative is to buy a device with adblock or Airplane Mode and supposedly this represents a healthy, competitive economy.
I don't disagree with your thesis. But the time for revolution has long since passed, this admin won't do anything about the ads. Nor will it's constituents.