How Much Do MD's/Partners at a BB/EB in BO Roles Make?

I can only tell you anecdotally, but I know that one of the HR partners at JPM lives in a sprawling mega mansion, as she holds a BBQ every year with her staff. I worked with someone and her partner worked in HR at JP, and they went every year. 

Other than that, my old COO was around ~42, had a mansion, sent his kids to a top private school, sent his kids to tonnes of private sports lessons, hired out yachts in summer. His background was fund accounting, now he's got carry in a few deals, and heavily involved in fund raising. 

Head of ops at my current joint, supposedly just a bought a really nice large house, he's about ~35. His superior, who I'd say is about 44 lives in a 3-4 million GBP house. I always look the houses up online as I need their addresses for some things.

 In comparison the PMs at my last shop (with 20+ years exp) were only in 1-2 million GBP houses for some reason. The founder of that fund manager owned a 6m GBP house in notting hill, villa in Italy, two houses in US, he's obviously not pure BO, all he really did was fund raise. Obviously lots of factors but the calibre of housing is the only proxy I have other than outright asking how much someone gets paid.

Really depends what role they do. Obviously they earn a lot more on the buy-side. I've seen the head of compliance at hedge funds and asset managers involved in investment committees and providing guidance on certain investments, so probably very different from BB equivalent.

A lot of people are content to make $200k p/a and not push further than that. After 10, 15, 20 Years of making $200k+, I'd imagine you'd be doing not bad at all.