To be a human being is to be riddled with thousands of imperfections. Full of flaws; scrapes, spots, and scars cover broken and bruised skin. But robots need not fear and fret about fixable, trivial defections.
Humans perpetually throw themselves at cold, apathetic, greedy clinicians Only to be given terrible news and told there is no cure for a horrid death. Meanwhile, robots bask in the glow of love from a passionate technician.
Humans can never agree when it comes to the dealings of the heart. Always one-sided, they take turns ruthlessly destroying each other. Robots, oblivious to the issues of any and all feeling, live freely.
Naive humans will work tirelessly, only to see nothing but certain failure, But life has never once benefited those of us who are currently living. So, humans crafted robots, to always succeed where they could not.