Getting 500 cactuses on a planet and earning half a million is misery compared to other ways of earning money, which can make people billionaire in moments.
This game is on a testing environment, which means, everything is easy to earn, so people are free to get their dreams wild (as it will anyway happen with restricted and heavy money earning, they will just work a month, but will make their dreams happen) as well as when due to bugs, or important updates people lose nearly everything, it\'s all ok, and they can go on/rebuild fast.
That is just numbers tweaking, some servers to be more \"hardcore\" limited the easy ways to earn money, but anyway it will be done (as oficial) when more important parts of the game are dealt with.
Have fun,
-Mike