escaped
Jane was against marrying as a means to material security. She didn't want a husband just to secure her future, because she could earn an income from her writing. She wanted to marry for love.
We know this from her letters where she said, "Anything is to be preferred or endured rather than marrying without affection."
Jane Austen came from a big family with a many brothers, one of them very wealthy, she had the luxury of choice, her brothers were contributing money and providing housing for the three ladies, Jane, her sister and mother, from the time her father died and would for the rest of their lives.
Many women did not have this luxury. Take a lady like Miss Bates in Emma, she has no wealthy brothers, no father with money to leave. She is already living in genteel poverty as it is, Her mother probably has a small annuity to provide for them, while she is alive. Once her mother dies that annuity will end, Miss Bates will then be close to destitute. One can see why in those circumstances a loveless marriage is preferable to the workhouse.