To summarize: Having a sense for something that is invisible to everyone else can mean that many well-designed things are very poorly designed for you.

Which actually sounds like your basic early adopter problem. Hypothetically, as more and more people gain this sense, there will be market pressure to make the world more interesting and usable for them, and the growing competitive advantage for those who have it will accelerate the process. This won't be the last novel sense humanity sees... It will be interesting to see this play out, if not with magnetism than with UV or radar or whatever it is.