Imagine someone tells you they've created a money printing machine that prints 21m BTC, and they design the machine to give them most of the BTC and when it arrives in your town the man says "well it looks like the rules have changed now and your work isn't worth as much as my work because you encountered the magic box after me"
The users who ran the software on the network in 2010 required much less value input to generate bitcoins. Acording to Satoshis design, a user running the software now on an identical computer would not produce the same rewards for their work. This is essentially an intentional ponzi design.
Users who aquired bitcoins for low capital input are incentized to psychologically convince late adopters to purchase their bitcoins for more than it cost to produce and acquire.