Because when you become rich, it means that you make more contribution to society by providing more jobs, spurring higher GDP growth and paying more tax.

FORBES: Chinese Professor Tells Students Become A Millionaire Or You're A Disgrace

Water-cooling of this sort could also make a more direct contribution to the reduction of greenhouse-gas emissions, by promoting the use of solar energy.

ECONOMIST: Monitor

Brain drains are usually a bad thing, but the latest exodus of veterans may make more of a contribution to Google than they would have if they were rich and bored inside the company.

FORBES: Magazine Article

If Senator Lieberman will, himself, be more accurate about its wellsprings and character, he will make an even more vital contribution to our national security and public safety.

CENTERFORSECURITYPOLICY: Two-and-a-half cheers for Joe Lieberman

"Many within government really believe they can make a difference, that Ms. Zuma can make a contribution to making the AU a more effective organization, " said Elizabeth Sidiropoulos, national director of the South African Institute of International Affairs.

WSJ: Africa Union Elects New Leader

They have to get used to being harshly criticised and dissected by those who disagree with them, and they have to accept that sometimes the people reading their work will know more about the subject than they do and may have a valuable contribution to make to their thinking.

BBC: Microphones in radio studio,

Even if the financial contribution is small, a promising alliance could make all the difference to some of the more distressed life insurers.

ECONOMIST: Japanese insurers

Yet his most important contribution to medicine is not his surgical skill but his determination to make this huge industry more efficient by applying Henry Ford's management principles.

ECONOMIST: The charms of frugal innovation

At present, firms with five or more employees have to offer access to a workplace pension scheme but are not forced to make a financial contribution.

BBC: A pensioner at a post office