They have more net wealth than some small countries. They earned it with infallible business instincts and an unbroken drive to succeed. They have a passion for activism. People say money can’t buy love, but as these 5 billionaires have found out, it helps.

From the sharks of Silicon Valley to dedicated philanthropists to inventors who shock the world as they walk the line between madness and genius, these richest men in the world met their matches in women just as talented and driven. Meet the power couples who use their money, political clout and passion for activism to shape the world.

Andrea Hissom BWG_Wynn1Married to: Steve Wynn , Casino & Hotel Mogul

Steve Wynn and Andrea Hissom are considered one of Las Vegas’ most glamorous and charismatic power couples and have an estimated worth of $2.9 billion. Wynn acquired his wealth from the construction and development of some of the most famous Las Vegas casinos, including the Golden Nugget, the Mirage, the Bellagio, and the recently opened Wynn Las Vegas and Encore.

Married to: Bernie Ecclestone, CEO Formula One Group

Brazilian-born Fabiana Flosi, 35, is the stunning wife of billionaire Bernie Ecclestone, 81, who is the CEO of the Formula One Group of auto racing events. Ecclestone has a net worth of just under $4 billion.

Married to: Francois- Henri Pinault, CEO of Kerig

Look at any “Most Beautiful Women in the World” list and you’re sure to find Mexican-born actress Salma Hayek near the top. Salma is not only one of Hollywood’s most elite, she’s also married to Francois-Henri Pinault. He’s the French CEO of the holding company Kerig, which controls stock for numerous luxury brands. Although she is a highly successful actress, Hayek’s estimated $85 million net worth pales in comparison to the Pinault family’s rumored $15 billion.

Married to: Jeff Bezos, Founder of Amazon

Mackenzie Bezos (nee Tuttle) is an American author and social activist who is married to Amazon founder Jeff Bezos. Jeff Bezos has a fortune of nearly $40 billion, and the couple has famously campaigned to promote equal rights for same-sex couples, including donating $2.5 million to a campaign in Washington.

Dating: Larry Ellison, Co-Founder of Oracle Corporation

Nikita Kahn is a Ukrainian actress and is dating Larry Ellison, the fifth richest man in the world and co-founder of Oracle Corporation, a software development company that specializes in cloud and networking technologies. Ellison has an estimated worth of more than $50 billion and has been married four times. He divorced his last wife, Melanie Craft, in 2010.