I had to decided to leave my first startup job and go Singapore work for a big firm. I was told by my cofounders not to leave because they thought they would be

I had to decided to leave my first startup job and go Singapore work for a big firm. I was told by my cofounders not to leave because they thought they would be billionaries in a few years. In a few years this startup and 3 other startups I joined shut even before they could earn their first million