Business schools teach efficiency. Efficient as in 'put in a dollar, what gets you the most back in the shortest time period?' It is oriented to appeasing stockholders (investors), who want to see earnings grow. If your company is losing money, cut cost centers and maximize revenue to up the profits for the quarter so that the stock doesn't go down. This usually means cutting jobs, defunding research, and making things cheaper. Another way to accomplish this is to sell off specialized parts of the company for a quick cash infusion. Another big thing is the need to quantify -- you need to be able to put the numbers on a chart and if you can't then it is worthless. R&D cannot be quantified like that so it, along with things like IT and information security are seen as cost sinks ready to be slashed.

All of these add up to have terrible effects on companies that rely on research and having a workforce of highly trained professionals who are entrenched in your institutional knowledge. For example, you can't just fire a materials science engineer who is a specialist in silicon crystal seeding to save money one quarter and then hire another one when needed.

Business school type leadership rarely works in high tech. Important decisions are technological decisions.

It's easier to pick senior engineers from the industry and give them business education than vice versa. There is also special field called industrial engineering that trains people to manage and lead industrial processes.