"A young, but influential, entrepreneur I talked with remarked that I was probably “only interested in doing a startup to be supportive of my husband.” I was, to be frank, incredibly angry."
I'm not sure why she felt angry[1]. People judge, get over it; if a pattern of judgements becomes a problem, work on your credibility. I think reducing emotion at work has value in a lot of circumstances.
[1] or: "allowed herself to feel angry", which fundamentally reduces to "chose to feel angry" (edited in later)