Because you're paying people to complete a job, not for what they do outside of work hours genius. Are you paying people who have kids and longer commutes more money? Didn't think so.
>Why should I pay you more than some other remote worker in India, who'll work for a third of your pay?
They're 1/3 as good. If that's such a good option then why haven't you done it already?
Good luck getting qualified workers with that attitude. Capitalism works both ways bud and isn't an employer only benefit. Right now employees have the upper hand and if you want to bring decent talent in you should probably be competitive.