Yeah, sure, some people cared. I knew many.
But it didn't really matter that much.
Until the athlon practically nothing ever actually died from heat.
People did spend a lot of time and effort lapping chips to the copper, strapping absurd heatsinks and 9000rpm deltas.
In my experience the pay-off was negligible for the price.
A 300a that did 450 and not 504 wasn't going to get to 504 fully stable with lapping, a 2kg copper sink and a delta.
It sure would cost you though.