He said that democracy would open the way for self-seeking politicians to abuse the situation.

他说民主将为追逐私利的政客大开方便之门，使他们趁机以公谋私。

《柯林斯英汉双解大词典》

The first half of this mental shift is to stop thinking immature thoughts, which are self- centered and self-seeking.

这可以分为两部分：第一部分是停止不成熟，即自私自利的想法。

youdao

So how could I dare to be so dissatisfied as to head off on such a selfish and self-seeking whim?

那么，我为什么还敢怨气冲天，以至于去做这么一件自私自利，异想天开的事呢？

youdao

But however self-seeking and power-hungry Mr Thaksin may be, the red-shirt movement now dwarfs his individual ambition.

ECONOMIST: Thailand in flames

Because a lot of times people give advice and it's misguided or it's self-seeking and they may not know it.

NPR: Help 'Ask Amy' Write A Commencement Speech

Where had we been selfish, dishonest, self-seeking and frightened?

FORBES: A.A. in the Age of the Internet - We Pause for a Primer on "the Program"