Olympics has struggled with attendance. But if it makes billions, does filling seats really matter?

It was the kind of roar that has been in short supply at these 2018 Winter Olympics.

Twelve thousand fans — many of them Korean — packed into Gangneung Ice Arena, cheering as their countrywoman, Choi Min-jeong, won her heat in short-track speedskating.

“We expect a gold medal tonight,” said Jaewoo...