Resonates very much with me and I am with others with the 'stick at it' advice. I did this myself with similar high earnings, reasonable lifestyle, but no passion, and don't regret it. Although who knows, in another universe perhaps their is another me who escaped and has had a 'better' life.
I have had a career in finance which my opinion varies between its OK to a feeling of being one of the vampire squids. Cannot say I am as outside the norm lifestyle wise as you present yourself but certainly have never desired the ridiculous house and car. For what its worth I tried escaping a few times, once to travel, once to start a business and once to do a masters. Each time I thought I was out for good. Upon financial reflection though, and I am not particularly proud or ashamed of this, I always came back to the money and the fact that over time it would provided me the opportunity to FIRE relatively early in life (41 now).
My last attempt at escape was 2010 and when I decided to come back I committed to working however long it took me to get the stash level which meant I never needed to return. It hasn't always been easy, but I don't hate what I do day to day, and now in 7/8 years later I am just under a year away from FIRE and arguably could go now. It feels great, although hard to slog out the last 14 months and 4 days....
My personal opinion is that it is really hard to earn $200k. Knuckle down, save hard, let your peers financially expand their lives while you enjoy building a stash that very few others will get anywhere near in their lifetime. Finally, sail off into the sunset in you late (ish) 30s.
You make a valid point on spouses / children. You may find a committed MMM disciple to marry. If it is someone more 'normal', perhaps you will be happy to have more behind you. My experience of kids is that they are more expensive than you can conceive before having them. Not saying we shove silver spoons into ours but they seem to cost in surprising ways. Simple point would be all the travel 'hacking' espoused on this site; try travel hacking a holiday for a family of four during school holidays!