Capitalism habituates people to respect each other’s (justly acquired) private property.
However, to the extent that “the state is that great fiction by which everyone tries to live at the expense of everyone else,” as per Bastiat, as more people decide to enter the political game, looting each other through the machinery of state, each citizen’s “moral restraint” against using the political means to wealth diminishes.
“Why should I remain the ‘moral’ loser?” each public chooser thinks. “I at least need to protect myself in the free-for-all political brouhaha, or even myself pillage and plunder something.”
This beefs up the welfare state still more and and accelerates its growth.