… matters to him/her
Creo que usted es el único al que le importa.
I think you're the only one who cares.
El dinero es lo único que le importa.
Money is the only thing that matters to him.
A él le importa una mierda lo que otros digan.
He doesn't give a shit what others say.
Do you mind?
Perdonado, ¿pero qué le importa?
You're forgiven, but what does it matter to you?
— Roma città aperta (1945)
¿A nadie le importa?
Does nobody care?