Start medical school at 30?

So I’m currently 27 finishing my bachelors and had the option to finish with a biochemistry degree in one year or an Engineering degree in two years. Currently have no debt, live with parents and own a digital marketing company making about 95k income (pre-tax) monthly. 250k saved up.

Don’t need to do medicine for the money but rather passion and purpose. My concern is that it’ll take a long time (9-10 more years) and I’ll be wasting my good years whereas I could just finish an engineering degree and start my own engineering company from the money I have saved up from my digital marketing company, or dive into the tech startup world. I’m passionate about both engineering and medicine.