We can back up facts with studies and observations like the ones you linked, still there are people who believe in the myth of the self-made man who is being oppressed because raising 30€ of minimum wage per month (like my government just did for 2015) is an attempt against the employers' human rights...
Whoever fights monsters should see to it that in the process he does not become a monster. And if you gaze long enough into an abyss, the abyss will gaze back into you