Why does this matter to you?

这为什么对您来说很重要呢？

youdao

So why does this matter?

那么，为什么会这样？

youdao

But why does this matter?

但这为什么至关重要？

youdao

This is why he's continually mistaken for a preacher, no matter what he does.

所以他会一直对传教士有误解，无论他做什么事。

耶鲁公开课 - 1945年后的美国小说课程节选

Why does this matter for anyone outside Japan?

BBC: New Year messages from Japan

And mentioning the statistic about gaming in bed (why does this matter?), it makes it seem that, if given the choice in the bedroom, women would rather harvest the hay in FarmVille than go for a roll in it.

FORBES: Survey: Women Enjoy Video Games More Than Sex

Why does this matter to Starbucks?

FORBES: Magazine Article