I suspect lack of wide-spread welfare and other socialist programs, and parental and societal shunning of jobless bums, were major contributing factors.
Kennedy said, "I believe that anyone who works 40 hours a week, 52 weeks a year, should not live in poverty in the richest country in the world,"
This is just poor logic. Hours worked does not equal value to the employer or to the customer who ultimately pays the wages. Besides, is he really saying that $7.15 per hour would move that person up out of poverty.