Do you know any real life rags to riches stories?

I think I'm one ~ grew up very low income/fairly abusive home. No exams, straight into NMW customer service role. Figured out I was pretty good at it, got promoted quite a few times, started job hopping strategically and landed working at a pretty high level in a fairly lucrative industry earning low six figures. Definitely a mixture of luck and determination ~ 7 years of unappreciated slog and low wages (under 50k) doing all the things you're not supposed to do (loads of extra, unpaid hours, working through holidays, answering my phone at midnight) followed by 3 years of very rapid salary and career growth.

My dad was raised with nothing. Village primary school in the north east, first person in his family to go to university and lived in a room in someone’s house at uni and worked his way through. He always made it clear it was both hard work and luck. He deliberately pursued a career that would provide financial stability, became a chemical engineer and ended up a millionaire. He did prioritise his career choices - so we moved abroad when he wouldn’t have chosen to, in order to further his career etc. and was always sensible with money to make sure he always had financial stability.
I always heard - I had 27pence in my bank when I left university…he never took loans or credit cards and always worked really hard, but of course luck played a role.