Conor McGregor doesn't owe anybody anything.
He doesn't owe the UFC. They've earned quite a few dollars on McGregor's back. Ditto the sport itself, which sees vertical spikes in its trend lines every time he competes.
He doesn't owe you or me. There's a good chance we'll be entertained regardless.
And he certainly doesn't owe his bank accounts, which are bursting at the seams like Derrick Lewis' shorts on the Sunday after a loss, or something. I don't know. I'm not so great with similes.
He may, however, owe his own legacy. That's not a small thing.