The coach was disappointed that his side slipped to a 3-0 loss to the Bianconeri, ruining their chance to go a point behind Serie A leaders Roma
Goals from Fernando Llorente, Andrea Pirlo and Paul Pogba ensured that the Bianconeri moved to only one point off Roma at the top of Serie A, while the Partenopei were left in third.
Juve have won back-to-back Scudetto titles under Antonio Conte, and Benitez believes that experience, team familiarity and cashflow are why the Naples-based club were defeated in Turin this weekend.
"Napoli are growing, as a team and a club," he told Sky Sport. "Whereas Juventus have been winning for years, so it’s only natural they are considered favourites.
"Juve are a team that make over €100 million more [than us] in sales, so it's normal for them to win."
The former Chelsea and Inter boss expressed disappointment that his charges conceded early in the game and he suggested that his team did not show the quality he is certain they possess, despite Juve's strength.
"Obviously starting against a strong side like Juve and going 1-0 down after two minutes changes everything. The team were struggling for 20 minutes, then we got back into it, but those two goals showed the quality of Juventus.
"It’s no consolation, because we lost, but everyone knows we are at 75 per cent and any intelligent person knows Juventus are still very strong.
"It wouldn’t be easy for anyone in this situation with such an early goal, but we fought back and had our chances.
"We needed more possession and to be more dangerous, but above all to show the character and quality we knew we had."
Napoli's next game is a Serie A clash at home to Parma on November 23, after the two-week international break.