You're asking the right question: what enforces it?

Think about how societies enforce contracts in general. Governments could, in theory, just stop enforcing citizen/property rights or contracts. But they don't, because if they did, trust collapses, citizens revolt, and the system breaks down. Enforcement isn't about perfection; it's about enough stability that the system holds together.

CBC operates similarly. It doesn't create a new enforcement mechanism out of thin air, but it gives existing ones (boards, investors, regulators, peers, employees) something concrete to hold leaders to. Without CBC, there's no "thing" to point to when accountability is challenged. With it, there is.

And just like with governments, the possibility of negative consequences (talent attrition, investor pressure, loss of credibility) is what incentivizes leaders to treat the agreement seriously. CBC isn't pie in the sky; it's infrastructure for accountability. Enforcement comes from the same place it always has: the need for trust and legitimacy to keep the system functioning.