[salawat]

As far as benefit to planet goes, I'll be honest, not tracking it. I'm tracking benefit to life and biosphere, which I do think is becoming increasingly connected with human self-interest, as we are very much the most active "shepherds" of the biosphere we inhabit.

Life as we know it will likely not exist anywhere but where we take it, and put in place the conditions for it's continued existence.

The Earth, or Mars having an interest or value impact is... Honestly a non-issue in my book. Call me biased against inanimate objects if you like, you won't be wrong.