How do you ground yourself?
I retired form corporate meetings years ago. I feel your pain there.
My fix was simple. I set a separate goal for myself instead of joining the "group psyche" found in corporate meetings. Its a job, its not your life, its a tool to let you move to a higher plane.
Trust me when I say no one will remember you 3 months after you leave that world, they will all be still riding that train to pain in search of financial gain.
Refocus on the positives in your world and put the work issues and hurts on a shelf, work with them for 8 hours a day then put them away and go hug those entities whom you "do" love.
Its just another shield you need to build.