The ideal version of a project manager would allow the person to be able to work across the board of industries, regardless of their technical knowledge. PMI is the sort of organization that helps to create these types of PMs. However, just I doubt that there is an ideal PM because it is difficult to lead a project if a person doesn’t have even some technical knowledge.
Maybe a medical device PM can be put in charge in a software company because we are required to learn some programming and MS is a program that almost everyone has some knowledge of. However, taking a medical device PM and putting them into a construction company would be a disaster because that is a very technical-based area of expertise. Having a lack of knowledge could lead to disaster or even a loss of life, which is nothing something that is likely to occur in a software company.