There is an implicit notion in our culture that corporations equal capitalism. Nothing is more false.
Capitalism is the notion that folks make products or offer services, each with a relative value. The customers have the option of this pair of shoes or this house painter, and they base their choices on the perceived value each vendor offers.
It's actually quite a good system. Honest competition, along with a bit of salesmanship, lets the customer decide the best value or the vendor who most suits them. We learned about it in high school.