There is a big difference. While the scent-nazis might be able to ban cologne in the offices of people with “sensitive respiratory systems”, it is impossible to make the whole world “safe” for them.
Also, people confined to wheelchairs actually have a real physical disability. They are not in those wheelchairs because they are too persnickity to walk.
Perhaps ther are a tiny number of people out there who are physically sickened by perfume, but 99.9% are just whiners who don’t like the unpleasant scents, or have a psychological disorder and are at no medical risk.
I feel bad for the 0.1%, but a much higher percentage of the population have allergies to various things, and we can’t purify the world’s air supply of all those allergans to accommodate them.