No it didn't Elon was first introduced as the richest man before the Tesla's 1.5 billion USD bitcoin purchase. Technically if you own 5 million bitcoin, you can surpass Elon's network by around 2 folds so in technical aspect, bitcoin can make you the richest person in the world. The only problem is how can you cash out all those bitcoin to make more money to have your title as the richest person in the world stay.