There are public policy reasons why a simple majority shouldn't be able to do whatever they like. It would be much harder to ever raise any investment if it were trivial for a majority to simply take everything for themselves and never pass anything back to the investors.

In such a scenario you end up with a boilerplate contract that any right-thinking investor will insist on, just to protect themselves in such a scenario.

Basically, company law has simply declared that those clauses are there by default.