Explain how the purchase of a pair of sneakers can be seen as an ethical act?

Explain how the purchase of a pair of sneakers can be seen as an ethical act?
For instance, should a company advocate for labor rights, a minimum wage, and unionization in developing countries where it has operations? What responsibility does it have for the welfare of a contractors workers in a culture with differing customs? What right does any Western company have to insist that its foreign contractors observe in their factories the protocols required in the West? What, for example, is sacred about an eight-hour workday?