Is there not a passage in the Book Of The Apocalypse that suggests the Earth would become a part of Heaven post- end times? If that is the case then the good folks get Heaven AND Earth but, the bad shall only have He?l. It sounds like the Just shall have the better deal in the long run!
That passage says we will inherit the Earth/land, it does not say we shall inherit this present temporal world.
Also, another way to look at it is that if you care about the sustenance of life one would cultivate the Earth. Therefor, you would be some sort of farmer, permacultureist, horticulturist, Aquarist or some such, so in that sense the land would be under your charge. Maybe some one else can give a deeper insight? This probably is not an appropriate interpretation... unless one likes farming?
Lastly, you are wrong. If nice guys finish last then why don't wicked people go to Heaven? Why is the devil in Hell? Why are the Saints in Heaven?
Pardon me for saying this but, you seem very concerned with the short term material return on your good deeds.