I suggest that you may be a bit out of touch. Over 40% of Americans earn under $30k per year [1]. And many more choose to live on this much. Ralph Nader, for example, lives on $25,000 per year [2], and accomplishes far more than anyone I personally know.
[1] https://dqydj.com/income-percentile-calculator/
[2] https://en.wikipedia.org/wiki/Ralph_Nader#Personality_and_ch...