What about the ethics of it all?

Rating: 3/10 (24 October 2015)

As they say, my first IMDb review. I am just surprised (and worried) of the amount of people praising this movie and calling it the best movie ever. It makes me suspect they are either very young, or very ignorant. None of my business, but an 8 for this film is an insult to cinematography.
I will skip the part with the scientific implausibility of it all, since I am no master in Physics/Botany. It's a Hollywood movie, I would have tolerated it. I will also choose to ignore the bad acting, shallow lines and virtually no character development.
What bothered me most was the absence of humanity in it. First, I couldn't see the characters as real humans, with feelings other than Hollywoodian bravery. The main character spends years in complete seclusion, yet we never see him having a breakdown or considering suicide. I understand astronauts have a strong psychological profile and that it might have been ironic to see Matt Damon going crazy again on a foreign planet, but it'd have been way more humanly understandable.
Also, his team has no second thoughts in abandoning their families some months more in order to engage in a dangerous and not very certain rescue operation. I'm no astronaut, obviously, but I'm quite sure they are human too, and must have at least some selfish impulses, if not acts. I also found it funny how they *subtly* let us know the captain is happily married, so that we do not suspect some erotic/love interests in the operation.
Last but not least, what is all this fuss about rescuing Matt Damon and spending zillions of dollars and energy on this mission? I can understand the idealism of it, I just find it is painfully ironic that not even one character in the whole movie mentions the tremendous cost&absurdity of the mission. Thousands of people die daily due to absence of food, water or medical supplies, there are wars storming across the world, diseases, refugee crisis, and all the earth cares for is saving this one person who is very good at growing potatoes using their own poop.
I understand the thing that humanity needs to be evolving, and that space seems to be our next level of discovery. It just seems to me we're forgetting of the humans right next to us in the process.
Ah, and another aspect I did not enjoy at all was the part where the martian gets rid of the extra weight in his spacecraft, leaving it abandoned on Mars. It was just a painful reminder of how people tend to leave mess no matter where they go, as long as it's for their own sake.
All in all, an incredibly superficial and sad movie. I'd have appreciated to have at least one skeptical character in it.