Why don't you answer the question. What would it take for you to go out and pick lettuce in 100 degree heat 12 hours a day?
If you won't do it, then why are you complaining that others aren't doing it.
To be honest, I wouldn't do it for $100 per hour. How about you?
When I was in college I worked manual labor for 5 bucks an hour. The type of work I did was construction and there was no heat or A/C either. That figure would have to be adjusted for inflation. But I guess that would be $15/hour now. But I am not in need of a manual labor job now. But a lot of people are.