Satoshi didn't know that BTC would become an actual currency, in fact, he thought at best they would be used as "trust points" or some other arbitrary thing. When he handed the project over, the value of his coins wasn't very high either.

Furthermore, your point is even more invalid since Bitcoin is PoW, anyone could mine coins regardless of what they had.

WE CANT MINE COINS WITHOUT COINS IN NXT, it's THAT SIMPLE.