The core principal is trustless permissionless decentralised money with no third party required. That's still intact.
It's one thing to envision something but when you put it into practice and try to spread it across the globe while maintaining its integrity and security that gets a little more complex and there'll likely be some casualties and compromises made.
And ultimately It doesn't matter what Satoshi's vision is. What matters is what people do with the system he created. He sent it off out into the world and this is what the rest of us have made of it.
If he'd been hell bent on keeping things to the letter he would've stuck around and I'm pretty sure people would've continued to follow him.
That's actually a very VALID argument, what you have said is mostly correct.
Yes, the community are the ones that decide what happens now but it doesn't mean that is a positive thing....
Bitcoin is just a store of value now, once it's hit a ceiling and investors don't get the returns they were hoping for, what then?
Once it's ceased to be a store of value and valid investment, what happens then? What does Bitcoin then become? Because it's broken as a form of peer to peer digital cash.
The stock markets work a very simple way, stocks rise and give dividends because a company continues to innovate and be profitable, those that don't die a hard death, what innovation is Bitcoin offering? What's it bringing to the table that is new or market leading now?
Like I said, it may not be in my lifetime but Bitcoin will undoubtedly die if it does not drastically adapt, right now it wont adapt in the way it needs to because the financial incentive is to keep Bitcoin expensive and as a digital asset and store of value. That can't and wont last forever.