I didn't mean to imply that there was anything sinister with Costco's advocacy; it simply seems like an instance where the interests of Costco and minimum wage

I didn't mean to imply that there was anything sinister with Costco's advocacy; it simply seems like an instance where the interests of Costco and minimum wage workers (possibly) align. In my mind, that's the benefit of a minimum wage program: you might have to pay more for labor, but so does everybody else, theoretically resulting in more customers with cash to spend. As a company which already pays above minimum wage, they happen to get the benefit without the cost.