Like before - debt!

This prevents the consumers from slacking off and enjoying life, instead they have to continue to work work work. They get to consume a little, and work much more (after all, they also have to pay interest, and for consumer credits and credits that the masses get that adds up to a lot).

In this scenario, it does not even matter that many are unable to pay off all that debt. As long as the amount of work that is extracted from them significantly exceeds the amount of consumption allowed to them all is fine.

The chains that bind used to be metal, but we progressed and became a civilized society. Now it's the financial system and the laws. “The law, in its majestic equality, forbids rich and poor alike to sleep under bridges, to beg in the streets, and to steal their bread.” (Anatole France)