Chiller described Tomic's behaviour as "appalling" after the 23-year-old - when questioned about his match-point antics - said he didn't care because he was worth $10 million.
Kyrgios admitted behaviour would be a factor in the pair's selection, but defended Tomic's actions.
"Yeah, for sure I think, you know, the behaviour has to be monitored going into the Olympics, representing your country," Kyrgios said.
"But, you know at the same time I think, with Bernard's case with that match point - I mean, its not easy playing Fabio [Fognini] on clay."
While Tomic's Italian Open campaign lasted less than 10 minutes due to illness, Kyrgios took care of Caruso 6-1, 6-2 to set up a second round clash against big-serving Canadian Milos Raonic.
The win continues Kyrgios's strong clay court form, but he remains wary of the challenge awaiting him in round two.
"I'm confident going forward, but, at the same time, Raonic's got one of the best serves in the world."
- AAP