Is the 200K gross or after tax? Makes a difference to what help you can afford to bring in, especially if you live somewhere like London/SE where the cost of living is higher.
In general though, I don't think there is a salary that would entitle someone to leave everything to their other half because it comes down to respect, doesn't it?
I'm a sahm, and my dh is out of the house for 12-16 hours every day, 5 days a week. He earns well, but he still helps out around the house.
I have had surgery recently, so he's doing most of the chores atm as well as looking after me.
Normally though, and including garden chores, I'd say chores are split 80/20, with me doing 80%.
We were at an impasse a few years ago because I felt like he was being disrespectful of me as he wasn't even tidying up after himself anymore (would just dump stuff wherever, eg, yogurt pot and spoon left on table or by sofa, clothes left on floor 2ft fm laundry basket, etc).
When I pulled him up on it, he said he wasn't expecting me to clear up after him, and my point was that he actually was because he knew no one else would do it and that because I didn't want to live in a mess, it left me clearing up his mess and it wasn't fair and just showed a lack of respect.
It took me telling him that I was on the verge of leaving him because of it, for him to take me seriously and once he really thought about it he was ashamed at how he'd started treating me and really regrets it. I think at that point it had been going on for 4 years and I'd just had enough.
Since then, he's really changed and helps out more as well as making sure he clears up after himself. He's also more appreciative of what I do and will bring me flowers, etc, just because.
Have you sat him down and really told him how it makes you feel? Would that be worth a try?