The primary purpose of CoCs is to enforce power relations.
For example, apple plainly committed misconduct when they unilaterally bullied the W3C into not adopting SPIR-V as the shader language for WebGPU. The implicit threat was that they would simply kill WebGPU by not making it available on iOS where they have the browser monopoly (which itself is a violation of good conduct.)
All other browser vendors, game engine vendors, and users supported the adoption of SPIR-V but in the end Apple got their way and WGSL was created as a bespoke shader language for WebGPU. (Naturally afterwards many post-hoc justifications were invented for this move.)
Users and game engine vendors were quite upset at this because they now have to learn and implement a new shader language. When they expressed their discontent, those complaints were quickly and forcefully shut down with reference to the CoC (which apparently does not apply to Apple.)