Those numbers don't seem to stand up to even the most hand-wavy sanity check. For example, the combined cost of "only" the ISS, Apollo program, and Space Shuttle programs are on the order of ~$150 + ~$200 + ~$200 = ~$550 billion. A third of the proposed cost for "megascale engineering" - including a total rejuvenation of the global atmosphere, and the construction of entire cities - on Mars.
But even if it were a given that this outrageously tiny figure was true of today, the infographic is talking about a time span hundreds of years in the future. It's literally meaningless to try to assign costings to a project of this nature.
It's sci-fi. Fun sci-fi, sci-fi that may well be feasible and desirable at some point in the future. But trying to present it in this sort of way now is just ... silly.