I know what you're saying, but I wonder how many people there are even on HN who wouldn't consider US$1M/year to be "big money".

I hope they would. I'm just comparing MSFT compensation for a SWE in the USA which might range from 150k-400k per year unless you get to quite high levels, with companies like Meta, nvidia, openAI, Anthropic where someone might make 1m a year with 2 years of experience due to crazy stock appreciation and very high offers for specific domain expertise