How is it fair to only compare raw salary numbers? There is nearly zero safety net in the U.S. Two weeks paid leave at best, you're expected to work long hours, healthcare is a mess... Compared to Western Europe, where there is affordable healthcare, saner labor practices etc.
1. That totally depends on the country. The social safety net in the UK is not great for example, and the NHS is barely functional
2. Social safety net isn’t required for a tech worker who makes such huge amounts, and their cost of living is not greater enough to make up the difference