I keep thinking of @NorthSideSox72's article about how teams should invest in housing, meals, and higher wages for their minor leaguers.
I imagine if a kid was a tough sign and his agent said "Yes, it's a tough situation compared to college, but the White Sox will pay you a good rate during the season, they have dorms near their fields and they provide meals to the players," then it would be a lot more enticing than "You're gonna make below minimum wage, sleep on air mattress in 5-person studio apartments and eating lots fast food."