Not for me, unless it was absolutely necessary to provide for my family, of course, because then you do what you have to.
But just to advance my career, no, not worth it for me, I would rather spend time with my children. I travel a lot for work, for now we all go together, both DH and kids happy to do so.
If this changes, I will cut back on travelling. My DH feels the same and would not be separated from us for long periods either (and his career has taken a back seat due to my travelling, so he is making the sacrifice).
But then, I would never send them to boarding school either.
But it might work for other families, it does not mean at all that she does not love her children or prioritise her family, nor am I sure it necessarily harms the kids. It's just not for me and mine!