Expediency (noun)

1. The state or quality of being convenient or useful for a particular purpose.
2. The quality of being suited to the circumstances; practicality.
3. The advantage or benefit that is gained from taking a particular action.

Origin:

From french expédience, from latin expedientia, from expedire ("to make read.y")

Examples:

1. The decision was made based on expediency rather than principle.
2. The expediency of the proposal was questionable.
3. The government's actions were driven by political expediency.
4. The company's decision was based on financial expediency.
5. The expediency of the new policy was debated by the board of directors.