I doubt it's even a real story. I've heard variations of it. The basic idea is "just because I'm rich doesn't mean I'm giving stuff away, how do you think I got

I doubt it's even a real story. I've heard variations of it. The basic idea is "just because I'm rich doesn't mean I'm giving stuff away, how do you think I got (and stay) rich?". The ferarri, the $50 note, and other details are just embellishments in this version of the tale.