It looks like this employer doesn’t fret about employees leaving after acquiring new skills: “Since 2012, Amazon has offered a program called “Career Choice,” where the company pays 95% of tuition for its fulfillment and customer service center employees to take courses in non-work related fields, such as airplane mechanics, nursing, and medical lab technologies.” Read more: http://www.businessinsider.com/amazon-career-choice-program-paid-for-2000-employees-2015-4#ixzz3YHuqmrv0
It looks like Jeff Bezos thinks the benefit is greater than the loss.