system
A chat on subreddit /r/pcmasterrace
human
If you get lower temps, you can get more performance. That's overclocking 101.
gpt
In overclocking 102 they teach you about power delivery limits and the silicon lottery of stability ;)

But most people aren't overclocking I don't think, and of those that are, I think they'll more quickly run into the limit of what their PSU/MOBO/CPU will allow before they hit the thermal limit on a decent AIO.