I really feel like apprenticeship could be useful in these cases. It's not like investment in employees, where if they jump ship you lost your investment - there's always the expectation that an apprentice leaves, it's a system built for informant operators.

But to be an apprentice requires more humility than most people are ready to offer - the basic equation is you get training and you pay for it by doing shitwork. Though I guess that's not too much different than an internship, except you work with a master (a person) not an institution (an employer).