Because it is a non sequitur. It fails to engage the point of the argument.
The point is that SpaceX is a making a potential contribution to humanity's future, which makes it a more meaningful way to spend your working years than an advertising company.
The fact that an advertising company thought that SpaceX was a good investment has absolutely nothing whatsoever to do with this argument. It completely misses the point.
The point is that SpaceX is a making a potential contribution to humanity's future, which makes it a more meaningful way to spend your working years than an advertising company.
The fact that an advertising company thought that SpaceX was a good investment has absolutely nothing whatsoever to do with this argument. It completely misses the point.