Having been born in a developing countries and went to US for university and work sometime there, I can say that US minimum salary and the other related perks are already significantly way better of most of emerging countries.
In fact, the US is at or very near the worst among OECD countries in all of the following, and is much closer to Developing countries than Developed countries: infant mortality, child poverty, child health and safety, life expectancy at birth, healthy life expectancy, rate of obesity, disability-adjusted life years, doctors per 1000 people, deaths from treatable conditions, rate of mental health disorders, rate of drug abuse, rate of prescription drug use, incarceration rate, rate of assaults, rate of homicides, income inequality, wealth inequality, and economic mobility. [1]