It’s up to the employer. The employer is the one investing time, money and resources into the training. The employer is the one who invested time, money, blood, sweat and tears into building the business.
The bottom line is that if it’s the employer’s experience or belief that hiring someone with a MS in engineering is not the best candidate for a warehouse manager or forklift driver, for whatever reason, that’s his choice. It’s not your place anymore than it’s the government’s place to second-guess that decision.