OP- you are not going to believe me but I’ll post this anyway- there are tens of thousands of people working in the medical device field who are NOT engineers. These companies have departments of finance, marketing, human resources, government relations, corporate strategy, strategic communications, etc. Even the R&D departments likely have folks with degrees in statistics/applied math (very important for designing clinical trials) who are NOT engineers. Even a high tech team of engineers who create and test composite materials rely on a purchasing department to figure out how to buy titanium or how to hedge the price fluctuations in aluminum to assure a steady supply of a mission critical component.
If you expand out of companies who develop and make devices into the allied field- hospitals which test new devices, lobbying firms which employ people who figure out which congressional sub-committee will have the power to fund or de-fund a particular federal program, etc. you are now talking about tens of thousands MORE people who focus on medical devices who do not have engineering degrees.
So sure- do your level best to stay the course. But you are sabotaging yourself if you’ve decided that the one and only path that will work for you is engineering.