On average, probably.
Even if you’re an intelligent, charismatic handicapped man, who would make an excellent CEO, CEOs aren’t hired straight out of school. Usually, you have to work your way up the ladder. If you can’t type quickly, that will rule you out of a lot of starting menial jobs. If you can’t move around effectively, that might make a lot of sales jobs difficult. You certainly won’t be able to start in most jobs that require physical labor. If you need to go to the doctor’s a lot, you’re going to lose out on opportunities that others would be able to have access to.
If you can’t succeed well at the menial jobs, how are you supposed to work your way up the ladder, effectively?
But at the same time, a lot of disabled people aren’t just physically disabled. The sort of ailments that cause physical disabilities are also often going to cause mental disabilities as well. If you’re not smart nor physically capable, there’s going to be a strong limit on how far you can go.
But, at the same time, this is true for all of us. How many of us can be Dolph Lundgren, both highly intelligent and a natural fitness god? We class “disability” as a hard line, but really everything is on a spectrum. There are people just 1% too smart or too physically mobile to qualify for disability. If we look at a natural, unmodified free market, we’re really just rewarding people for what they do contribute to society, and that’s always going to be strongly related to what they can contribute to society. And, on the whole, rewarding people who can for doing tends to work out better for mankind as a whole than if you don’t reward people for putting in that effort to devote their full potential to giving to society.
We can say that the disabled are being shafted by this. Or we could say that we’re spinning the innovation flywheel faster, so that technologies are invented that prevent disabilities, that fix disabilities, or render them irrelevant.
To look at the long run, let’s say that 20 million disabled people have lived lives that were less pleasurable than almost all other Americans, from the period of 1900-2020. But then let’s say that in 2020, we develop CRISPR technology that allows us to prevent all causes of mental disability. And, in that same year, we invent biomechanical implants that hook into the nervous system and allow anyone to perform any physical task just as efficiently as any other human on the planet. Now, from 2020 until the end of humanity - encompassing billions or trillions of humans who would have potentially been disabled, not a single one will have a life that is in any way diminished from any other. Numerically, the balance between 20 million and a meaningful percentile of all human ever in all the rest of time, the less-thrilling lives of those 20 million is more than justified if it means that we get to those technological improvements in 2020.
If, instead, we say start a communist system where we say that the free market is unfair to humanity - as we are all fundamentally equal, yet it gives to us unequally - then suddenly those discoveries of CRISPR and biomechanical implants might take hundreds or thousands more years to be developed, if at all. If we look at your average communist country, the only time they ever innovated was by trying to keep up their image with a free market country, and even there, they ended up having to steal a lot of the technology just to do so. Countries who made no such attempt, like Cuba, simply sat stuck in the 1950s without ever doing anything to advance anything.
But, then again, we can look at the Scandinavean countries and say that the natural free market rewards people at a higher rate than is necessary to keep motivated to work to their best. We can try to do our best to make sure everyone’s life, today, is good while still working on the technologies of tomorrow.
So ultimately, my answer would be that the free market is, yes, fundamentally tilted away from rewarding disabled people. But at the same time, it’s almost certainly the savior of disabled people and not only is that something which is going to become more and more true in the immediate future, it’s already been true for quite some while. The percentage of disabled people, today, is significantly lower than it was in, say, medieval times. Technology has already started to render the question moot.