so when a big name beer company pays for the tap system at an establishment with the contractual agreement that only their beers will be pouring from the spouts, that is not strong-handing the market?
No, that's what is called negotiating a fvaorable and lucrative contract. All is fair so long as no laws are broken. It's not their fault that Bud Light is the most popular beer in the world. No one is forced to buy their product.