It is permissible for a man to marry more than one woman out of pride or in order to compete with one another rather than due to a genuine need? What is your advice to those men and women who object to a plurality of wives when there is a need for it?

Fatwa, posted 4.22.2010, from Saudi Arabia, in:
Religious Authority: 
Muhammad bin Saalih al-Uthaymeen
Fatwa Question or Essay Title: 
It is permissible for a man to marry more than one woman out of pride or in order to compete with one another rather than due to a genuine need? What is your advice to those men and women who object to a plurality of wives when there is a need for it?
Websites and Institutions: 
Fatwa Islam, Internet Catalogue

Marrying more than one wife is a desirable thing - on condition that the man has the financial means and the physical ability to act with justice between his wives. This is because through plurality of wives, good is achieved, such as protecting the private parts of the women who he marries (from illegal sexual intercourse) and broadening of unity between the people, and increasing the number of births, as indicated by the Prophet: 'Marry loving, productive women.' It also contains many other benefits. As for a man marrying more than one wife out of pride and competitiveness, it is something which falls into the category of waste, which is not permitted.