Either some employees will fight the entropy in their spare time and at their own expense, or it will grow uncontrolled. If you see a product that was once great, but is now a bloated buggy piece of garbage, uncontrolled entropy is likely one of the reasons why.
The part that makes me the most sad is the people who choose to fight it on their own are often talented and could have had more impact doing something entirely different. But they're doing it because no one else will.