The Partenopei stormed into a 4-0 first-half lead against Serie A's bottom club before ultimately sealing a 4-2 victory, moving the team to within six points of Roma after playing a game more.
Napoli hosts Juventus on Sunday in a tantalizing clash but Benitez maintains he is not preoccupied with cutting the 20-point gap to the league leader.
"Our objective continues to be targeting Roma in second," he told Sky Sport Italia. "We have to do our work, continue winning and see where we end up. After the Juve game this weekend we'll have only one match per week and it'll be easier for us."
Serie A top-scorer Carlos Tevez is set to be suspended for the encounter, but Benitez does not believe a squad the size of Antonio Conte's will be affected.
"All their other forwards are of the highest level. I don't think a team with 300 million euro turnover will depend on one player, even a champion like Tevez," he said.
Benitez admits his side lost control of proceedings against Catania in the second half but was thrilled with the team's attacking efforts, and had particular praise for Henrique following his superb goal and all-round performance.
“We did very well in attack, but winning 4-0 at halftime it became difficult to maintain concentration," he added. "Catania showed great pride to get back into the game and we didn't control it very well. We made many changes, as there are several players out injured. I chose Duvan Zapata because he's strong in the air and I also wanted to give Gonzalo Higuain a rest. We have to keep working, because we have to do better.
"[Henrique] can play more or less anywhere and is tactically astute. He has the experience to control his performance in different roles."