I learned in the early part of my career that labor must bear the cross for others' sins, must be the vicarious sufferer for the wrongs that others do.
I won't back down. I get a satisfaction from being tested and defeating the test.
For me it came from the material. It was so well written and brought the opportunity to work with great actors. And of course the opportunity to 'mince about' was an added element that I wanted to take advantage of!