Hannah Martin once had a career others admired. She worked as a copywriter at top ad agencies in London, including Ogilvy. But behind the impressive titles was a reality few saw: five-hour daily commutes, long workdays, and the ache of missing her son’s early years. "I was a single mom. I had an au pair look after my son while I was at work, and I didn't see him for much of his early years." When her daughter was born, Hannah knew she had to make a change. She started freelancing from home, a decision that opened her eyes to a bigger problem. Many women around her, despite brilliant careers, were forced into low-paying jobs that didn’t reflect their skills. She saw their struggle. And...