Well the thing is "unfair working conditions" is subjective and lacks binding force unlike say illegal trade with a sanctioned country. So the consequences are "whatever the consumers decide".
Depends on who is getting that $1 and where they are at in the world. I am certain there are places in the world where $1 an hour would be considered almost unheard of by the working class people in the country. Places where $1 a day is considered good money.