But your lawn guy stays in business - which is relevant to them and to you (for as long as you're a customer). If the market is efficient, there should be reasonable competition that you can switch to that more aligns with your needs.
Then you realize that by the time you pay off the capital investments needed to switch to a new provider they'll be pulling the same stunt and you should've learned how to cut the grass on your own.
The VC capital is concentrated in to the hands of a few players. They're not going to compete against themselves.
And nobody is going to compete against the titans.
The market is efficient at concentrating wealt in to the hands of those who already have it.