For which purposes you think Nakamoto created Bitcoin? To earn a lot of money? Or just to create something new?
if Satoshi was looking for money the he would have dumped his coins a long time ago back in the time of $1200 level and then bough back and dumped again and again just like what many other altcoin developers are doing.
What are your thoughts on the topic?
my thought is that you should read the bitcoin white paper.
bitcoin was created to introduce the new form of money that you said yourself too, a public ledger which is decentralized and helps us be our own bank.