Don't think that's how most people see it. The worth of "an hour of your time" is basically 0 no matter who you are. If you're doing something specific (like working) then that hour of your time has value which is preset by your employer.

But that doesn't extend into all hours of your life. Your employer will not pay your hourly rate for your personal hours just to live.

You can of course then say "oh but I value my time," but value is subjective while the dollar amount isn't. If you truly believe that, then you also believe that people's personal time has different worth based on how much they're paid, which is a fundamentally wrong way to look at the world imo.

Many people are not salaried and can roughly convert more working hours into proportionally more money, so the comparison does kinda make sense. Why uselessly stand in line for an hour when you could use that hour to make more deliveries, do research on one of your clients cases, or whatever?