The more I have a personal vested interest in your success, the better.
Hunting people have the biggest vested interest in the survival of the species.
In the meantime it was controlled by those with a vested interest in the industry.
An independent lab has no vested interest in the outcome of tests and should be a more trustworthy source of information than manufacturer's tests.
Moreover, Norway has a vested interest in helping to reduce the extensive environmental problems affecting the geographically adjacent area of Northwest Russia.