Citation please. My experience is that there are a lot more MDs and PhDs in biotech than other tech fields. I would like to see where you got the information that a "significant number" have absolutely no science training. Also, when you say "significant number" do you mean less than other fields at a significant level or do you mean less than some number you are defining as significant. If the latter would that be only 5, 10, 15, 20, 49.9% without science training and is that less than average or other tech fields?
I don't think it's necessarily a bad thing. There is a whole new crop of start-ups in the healthcare space with founders coming from Google and Facebook (ie Flatiron Health). I think this is great for bringing innovation to an industry that is hurting for it.