It goes both ways. Not necessarily with aspies, there are really no drugs specifically for them anyway. But I've known several people who really needed antipsychotics, and in most of those cases they went from delusional and violent (towards at least themselves, if not others) to being able to lead fairly normal lives. On the other hand, one of them eventually acquired so much liver damage from his antipsychotic and bipolar meds that he died. Yet, had he not taken them, he might have gotten himself killed in some other way. One of the happier cases I'm acquainted with is almost completely recovered after a couple of years on antipsychotics, but he still has a scar on his throat and another on his chest, from earlier suicide attempts.
I totally agree that the pharma industry is corrupt. Doctors may or may not be influenced by their money and perks; I have a relative who is an MD and is one of the most uncorruptable people I've ever known. But he can't know everything, and 90% of what he is going to see are studies funded by pharmaceutical companies. In a system where medicine is for profit, few others have any incentive to throw much money at research.
Of course, most of this is kind of off-topic when it comes to aspies. Even if pharmaceutical companies start trying to develop drugs specifically for autism, they're probably not going to be right for most aspies anyway. They'll probably be like Ritalin... helpful for the ADHD experienced by some, bad for most with OCD, terrible for those with tics, and unacceptable for many other individuals due to side-effects. They're saying now that autism may be caused by as many as 100 different genes, and I totally believe that. It's not like one thing, it's like a whole big array of things, which have a lot in common, but also a lot which differ.
My aspie kid is about to turn 10. So far, he hasn't taken anything but vitamins and minerals, and I hope to go on that way for the forseeable future. But I can imagine doing otherwise at some point. If I do, it will be slowly, carefully, and with a lot of research before the first pill is swallowed. And if it causes more problems than good, he's coming right back off of it. No doctor knows your kid like you do.