how was decorating Rue's body a noble act?

Rue is not just another casualty of the games. She became Katniss's friend and ward. She defies the Capitol when she performs the noble act of decorating Rue's body with flowers. This is also defiance as the flowers symbolize the violent senseless murder of a child for entertainment. The Capitol would look bad iin front of their audience.

I gather up an armful and come back to Rue's side. Slowly, one stem at a time. I decorate her body in the flowers. Covering the ugly wound. Wreathing her face. Weaving her hair with bright colors. Ch 18