No, this is not the reason. They get “relief” from pretending. Pretenders believe they were born in the wrong body; they feel ‘complete’ when they act out their ‘pretend’ disabilities in their lives; whether it be by using a wheelchair when out and about or whatever it may be. It is a true illness.
That is why I feel those few TV specials (I don’t recall the specifics) like the one featuring the woman on TLC (I think) who was supposedly a pretender do more harm than good. Those aren’t reflective of most pretenders.
If you research pretenders and find some actual testimonials, it’s rather eye-opening. They don’t like their conditions. They don’t choose them. They are afflicted by them just like anyone else with a physical malady. Unfortunately many disabled people view pretenders and wannabees with nothing but scorn, as they see anyone who would FAKE having the life-altering disabilities that were forced upon them as shitty people. It’s not so cut and dry, however.
ETA: Now this is not to say that the DPW spectrum doesn’t contain predators and creeps. It does.