It's a result of compassion fatigue. When the first dead migrant children washed up on the Greek coast on people were appalled and transfixed. But the next month there were more dead bodies, and then more. Eventually people stop caring.
I'm old enough to remember "Live Aid". When Bob Geldof got up on stage and said we were going to end world hunger people really believed it was possible. Since then there have been dozens more famines in Ethiopia, and the deaths run to the tens of millions. And now no-one mentions them.
"Vested interests create “checks and balances” primarily to make political systems non-responsive to demands for social reform.".
It is thanks to checks and balances that we don't currently have a dictator Trump running this country. Anyone who thinks checks and balances are a bad idea need only take a cursory glance at the world over the past few years to realize we would be far worse off without them. From Jair Bolsonaro in Brazil to Boris Johnson in the UK, would be autocrats were thwarted in their quest to remain in office by these same checks and balances.