Well rich, because I don't want to be profitable, I just want to give away free food until it corrupts the other people. You wanna see progressive principles crumble? Keep handing drunk broke freshman free sandwiches.
They also have problems with Jesus Chicken because they demonstrate how government control isn't really necessary. Part of the reason they're so popular is that the founder
hasn't joined the rat race to the bottom,employee wise.
Apparently paying well above industry standard allows them to snipe the best workers, and being closed on Sundays helps with getting management in, because they at least know they'll have sunday off.* Customers, at least to an extent, might shuffle their fast food choices around rather than visiting the store less.
If you are the only place open on Sunday, it is a substantial advantage to you. If everybody but you is open, it might not be that big of a deal.
*Well, probably most of the time, they might schedule needed maintenance that day sometimes.