This is misleading and pretty much wrong. It’s like saying the hen is a liability, the only asset is the egg. Or like saying your team is a liability and the only asset is the work they produce..
The moment you want to minimize something while still achieving your goals you know it's a liability. Do you want the same profits or solutions with a smaller team? Then the team is a liability. If team were an asset you'd be trying to hire a bigger team without any work for them to do. If you had the chance to double egg production with constant demand, you'd eat or kill half your hens. They're a liability.
That's only true if you assign an appropriate meaning to the word derogatory.