Sometimes, does it matter at all? Once all important things get done eventually and relatively in time and the company earns enough money to chug along, it's just cost of doing business. The idle hours couldn't sometimes be cut away without hampering the productivity during active hours either.
In public sector the situation is trickier. There are no objective indicators of how productive the office is. Unnecessary hours can easily pile up. There needs to be something that forces prioritization and tries to improve effectiveness. I'd say a fixed tax percentage might work: if the government can fund more of itself by raising taxes then it must work to prioritize its activity to only do the necessary work and to support the companies in that country to generate more profits.
In public sector the situation is trickier. There are no objective indicators of how productive the office is. Unnecessary hours can easily pile up. There needs to be something that forces prioritization and tries to improve effectiveness. I'd say a fixed tax percentage might work: if the government can fund more of itself by raising taxes then it must work to prioritize its activity to only do the necessary work and to support the companies in that country to generate more profits.