As you've discovered, NOBODY is paying you big money just to play games or watch videos. Feel free to play those games if you find them fun (some people do) but do not play them expecting to ever get paid.
Report the app to Google using this process:
That way, Google becomes aware of them and can work on taking them down.
There are, literally, millions of apps available in the Google Play Store and an estimated 100,000 new apps are added every month. Google tries to find the bad ones and remove them but they can't catch them all.
As laid out in the terms of service:
"Google is not responsible for and does not endorse any Content made available through Google Play that originates from a source other than Google"