Fairness is easiest to preach when you expect to benefit from the rule.

Principles are cheap when you expect to be on the winning side of them. Advocating a standard that will only ever constrain other people costs you nothing, which is why such advocacy is so common and so unpersuasive to the people it lands on. The credibility comes from exposure, not from conviction.

Before arguing for a rule, work out how it applies to you specifically. If the honest answer is that it does not, say so when you argue for it.