I actually remember seeing a post about it here in 2009 and initially dismissing it because I didn't think it would gain enough traction and didn't take the time to understand how it was different than previous digital cash schemes.
Bitcoin price didn't even hit $1 USD until the spring of 2011. It's true that Satoshi has a lot of Bitcoin but so does anyone who was there in Jan 2009 and had the vision to realize that Bitcoin was something fundamentally different and put effort into mining it.
Compared to the way a lot of these other blockchains are being launch Bitcoin was by far the most egalitarian in the way coins were/are distributed. Most other coins retain a huge share of coins for the founding organizations through pre-mining schemes and other shenanigans.