There's a 0% chance of a successful colony, by any definition of successful, on Mars in the next century. If we, as a species, cannot avoid destroying the climate that birthed us over millions of years we have exactly 0% chance of surviving one that is completely inhospitable to life.
This speech by Colonel Jessep is meant to be revealing of his true thoughts and character. Jessep rationalizes the evil and immoral acts he commits or orders because he's "protecting" the rest of society. He lied to cover up his own malfeasance. A soldier died under his command, murdered, as a direct consequence of illegal orders he gave.
How do you completely twist the plot of this movie to arrive at the conclusion that Colonel Jessep's worldview is one to be admired instead of reviled?