Theres no value being created. Staking is a nice incentive to hold coins so people dont immediatly dump.
So that the developers can get something out of it too after all their hard work.
But it doesn't actually add anything.

Check out XAYA  https://coinmarketcap.com/currencies/xaya/markets/ - You can make a passive income whilst creating value.
No more promises of (unsustainable) high payouts based on nothing but thin air. But real passive income based on value created within a game.
The gaming world is only just starting to grow its competitive leauges. XAYA will be at the cusp of this new dawn.
And will be an innovator and leader in how people interract with games.

Quit your job, become a gamer. While its still early.