There is no correlation between size and significance. Every ministry matters because we are all dependent on each other to function.

大小和重要性没有什么关系，每一个部门都很重要因为我们相互依靠才能做好事情。

youdao

Size matters when world trade is falling because large economies have millions of domestic consumers to turn to when foreign markets fail.

ECONOMIST: BRICs, emerging markets and the world economy