Yes, but they only pay those people if they expect to make a profit by selling the end product to you. You are one of the people who make it worthwhile to set up a chain of payments like that.
If they do not expect you (or other people) to buy the meat, they won’t pay those people to raise / kill the pigs.
Whether it’s you this time or someone else doesn’t matter. As long as there is a demand by end consumers they will continue. If no-one buys it they stop, it’s that simple.
You’re part of the group that enables this dynamic and your money goes to paying those people. It’s fine if you like meat, just don’t deny this basic logic.