Econ Tusk was a child of rich plantantion slav... I mean Fouth Rafrican Bapartheid farmers long before any payment apps.
Elon Musk, with his brother received a $28,000 investment from their father in their first business. That's a lot, but not more than many kids receive toward their college education. When they started they could only afford one computer, so the site was up during the day and down at night so he could write the software.
Not nothing, but hardly ridiculous inherited wealth either.