Was ripple even around when Satoshi disappeared. If it wasn't, this isn't a really good reason why he disappeared from the scene, pretty sure he left when there was no other crypto-currency (other then BTC), and other cryptos like ETH, etc, where created a year later.

Ripple is a business that tries to sell tokens as securities/assets/blah blah, and it's completely different from bitcoin, which is a decentralized payment method/storage of value, and they have nothing in common except they are both crypto-currencies.

If Satoshi was around, I'm sure that we'd see a lot more action against these coins, fun to think about