I like the Swiss approach to overtime. 1. It can only be demanded for exceptional circumstances, with justification. "Poor planning or lack of staff are insufficient." [1] 2. It must be compensated with 25% extra salary, or extra holiday (if the employee agrees). An employee cannot waive their right to this. 3. Even then, there is a limit by law on the number of extra hours you can do in a year, [2] says 170 hours pe…
You'd need to tweak the multiplier in different countries dependent on inequality.
The median salary in the UK is around 29K GBP. I wouldn't say that 58K (70K CHF) is a "should be expected to exist at all times" salary.