I think you mean committed to life rather than work? Remember, people normally commute outside of work hours.
Therefore your math doesn't add up. 2hr commute against 8 hours of work is not a 25% increase.
But I think your point is still valid. Personally I'd "buy" my extra 2 hours of daily life for a 10% decrease in salary. Given that I'm awake for 17 hours, 2 hours saved is 11% of my waking time. Not a bad deal if you value your free time, or say you work on a side project.
Edit: see the correction below. It's still 25%, I was wrong.