No one's saying that two people can't make a "consensual exchange of value" of legal actions. I can't make a "consensual exchange of value" by paying a mob hitm

No one's saying that two people can't make a "consensual exchange of value" of legal actions. I can't make a "consensual exchange of value" by paying a mob hitman to kill someone that I don't like. This is a good thing, and this is not antithetical to a free society.