He's joining the club in order to take advantage of the others.

他入会是来揩油的。

《新英汉大辞典》

A trademark prevents others from using the identical or a similar word, name, or symbol to take advantage of the recognition and popularity of the brand or to create confusion in the marketplace.

商标可以防止其他人使用相同或相似的单词、名称或符号来利用品牌的认可度和知名度或在市场上造成困惑。

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"If you say all sentient beings will benefit," said the farmer, "my wife may be very weak and others will take advantage of her, getting the benefit she should have."

“既然你说所有有情之品都能获益，”农夫说，“那么我妻子可能力气小争不过他们，她应获得的利益岂不是会给抢跑了？”

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One test of the Obama administration's economic philosophy is whether it is as eager to take advantage of that opening as some of the others now before it.

WSJ: In Crisis, Opportunity for Barack Obama

The companies that I have started in China take advantage of my strengths, and I have learned how to leverage the strengths of others around me to offset my weaknesses.

FORBES: So, You Want To Be An Entrepreneur?

"Part-time working suits millions of people and gives others the skills and experience to find a different job or take advantage of longer hours when they are available, " she said.

BBC: Underemployment affects 10.5% of UK workforce