But then the People wouldnt pay for it over and over again?

People are way less willing to pay for updates than for whole new versions.

Apple and companies using Android are selling hardware, not software like Microsoft.

If you havent already, I would highly recommend you watch the following video by CGP Grey:

Rules for Rulers https://youtu.be/rStL7niR7gs

It describes why its so difficult to turn a country around from authoritarian to benefiting the people. Even with magical dictatorial power.