I think the most important part of being a father who works is keeping strict boundaries between work and home. When I am at home, I am at home. When I am at work, I am at work. The kids know that M-F, dad's gone at 7am and home at 4:15. They know that when daddy's home, he's all theirs. We play legos, we play blocks, we build trains, we color pictures, wrestle, laugh, read books. It's all about them.
This strict boundary means I rarely if ever work from home. It confuses them. Daddy's present, but can't play with me. It breaks my heart to hear "Wanna snuggle with me, Dad?" and I've got visual studio open on the computer. Fk code. I want snuggle time with my baby-girl. So I leave if I have to and head in to the office. But I'm back before the kids go to sleep to read a story.
"Success" can be defined a lot of ways. My Dad reached his success by working very hard to gain enough money at the end of life to live playing golf daily in sunny Florida. He sees the kids maybe two times a year. My success will be living a full life now, surrounded by snuggling grandkids and hopefully great-grandkids when I'm old, still shoveling snow in Wisconsin winters if that's where they are.