If that was the world we wanted, then we all would have cheered as Microsoft steamrolled over Apple in the 90s, and we all get our software from the Microsoft Store today.
Large, wealthy companies and rich investors also exist on the market. They routinely fund innovative ideas that have the potential to disrupt established players. Absent any government interference, how long do you think Google or Apple will remain household names? 10 more years? 40? 100?
That's not the world I want to be living in.
Competition breeds excellence. Monopoly breeds complacency.