Capitalism is a system in which companies pay workers less than the value their labor produces. This sort of exploitation is unethical and it is present in all production of commodities, so there can be no ethical consumption under capitalism.

Except for diablerie. 

• "Ethical Consumption" design on a bumper sticker (which you can put on your car that you drive to your capitalist job... sorry about that)
• 3.75" x 15"

Don't forget to clean the surface before applying the sticker.