There was and still is a very big push in the States to find your life's fulfillment in your work first. Its very ingrained into our culture these days. I think it stems from the old cliche "if you love your job, you'll never work a day in your life".
Doing work that you hate is maybe not frowned upon, but if you have that sentiment people will strongly advise you to switch career paths to something that you would find more fulfillment in.
From the "I love my job" I get the feeling it's almost a career obligation to have this view. The view good employees think like this and you're no good at your job if you aren't passionate.
Doing work that you hate is maybe not frowned upon, but if you have that sentiment people will strongly advise you to switch career paths to something that you would find more fulfillment in.