The flaw here is that people equate IQ with magic. You are not going to live a magical life of instant wealth and unicorns if you have an IQ of 145. Things are more likely to get more difficult, as finding people to relate to or even being able to function in a 100 IQ society is impaired the further you are away from the average. How are you going to function properly in a professional setting like that? You aren't. The people with around 120 IQ are the ones at the absolute top when it comes to traditional professional settings, the ones at much higher levels are either nobel prize winners, billionaires, doing menial labor or in mental institutions.
Without some extreme drive you are going to be doing menial labour or in a mental institution (or on social care) and being Autistic is only going to stack the odds against you even further.
There's this dude Chris Langan with supposedly 200 IQ. He's living in some rural setting working on his theory of everything. I've read some of his stuff and the guy is either a totally delusional crackpot that let his "smartest man in the world" label completely define him and immunize him to any critical analysis of his own ideas... or he's so far above my level of intelligence that I cannot even comprehend the manner in which he thinks. I'm extremely skeptical of crazy high IQ levels and "famous people IQ" in general, but it would explain why normal people react to me in the same "he's a delusional crackpot" manner.
It makes no sense, however. 145+ is statistically 0.3% of the population. It's crazy rare, but exactly how intelligent is someone with an IQ that is statistically at the 200 level? Or even 145? Nobody really knows, but what I have seen (and also that is seen from analysis of functioning in society with different IQs) the first 1-2 standard deviations are the most meaningful, and it tapers off rapidly after that. For instance, nobel prize physicists have an IQ range of 122-169. Most of the others have IQ's from 135+ onwards, all the way up to the weird crazy of 175+ range. 122-135 is not that rare, while 175+ is crazy crazy rare, incomprehensibly so. While the ones in the 122-135 range are not "crazy rare" they are clearly crazy intelligent. So the difference between, say an IQ of 125 and 180, might not be that big in the sense of raw intelligence. Homo Erectus had an average intelligence of around 55, yet modern day humans with an IQ of 70 function around the same level as Homo Erectus, while there is a huge difference in functioning for humans within the same small range of 85-100. Statistically speaking a Homo Erectus with an IQ of 70 would be about as rare as a human with an IQ of 125, yet the difference between 55 IQ Homo Erectus and 70 IQ Homo Erectus was probably the difference between good hunter and leader that knew how to effectively co-ordinate a tribe, while the difference between a 100 IQ and 125 IQ modern human can be the difference between a lawyer/college professor and a nobel prize winning physicist.
So that should be kept in mind, when expecting magical results from magical IQ numbers. Nobody really knows how to measure "raw intelligence". We only measure statistical intelligence, because that's the only thing that can be objectively quantified at the moment.
Edit:
Also the effects from IQ both professionally and health-wise are very big. People with higher IQ's are healthier, wealthier and happier. It is a huge difference, but most of this difference is (probably, according to me) concentrated within the first 2 standard deviations.
