I equate those kinds of unrealistic representations as outliers to the collective experiences of people - just like the way some media represent women physically; it’s just not realistic for the majority…
I also avoid these types of representations because they don’t seem to do anything besides try to convince a person they need to conform to an expectation, and many times, that is unattainable and that causes distress.
The only time it tends to impact on me is when I have interactions with people clearly older and much more functional than me who say ignorant things aligned with their expectations of someone my age while disregarding my situation (eg: “you’re young enough to be doing *insert said expectation here*, just put some effort in”) to which I then patiently reply with some gentle raising of awareness - I don’t want to overtly disrespect my elders - regarding appropriate interactions when discussing a persons disability with them.. ie: discrimination and selfishness directed at others are not acceptable, neither is judging and expecting a person to function just because you do.