I wouldn't assume that. Left-leaning people want careers and a good quality of life of course, but generally ones that don't come at the cost of breaking down society or killing the planet. When I say 'career-oriented' I mean 'people who put their career
first'. Other people want a career, but it's not necessarily what's driving their left decisions.
Tech bros who put their personal gain ahead of everything else (other people, society, privacy, the environment ,etc) need to realise that people who don't think that way won't be attracted to them, so they should look for partners who are. I've worked with plenty of tech bros who want all the money, status, and prospects of founding a unicorn, and who are happy to sacrifice all of society's good parts to get there under the guise of 'disrupting an industry', and yet have no clue why the cute hippy UX designer who goes on environmental protests at the weekend has zero interest in dating them. They think the money and wealth means people will overlook their lack of ethics, or even lack of interest in ethics.
The only people who will are the career-oriented, right wing ones. People are generally attracted to people who are a bit like themselves. It's a cliche, but cliches are usually cliches because we see them a lot.