Ronaldo made his first appearance in a Bianconeri shirt in a 5-0 win over Juve's reserve side in their annual preseason warm-up game in Villar Perosa on Sunday.
An estimated 4000 fans mobbed the tiny arena in order to see the five-time Ballon d'Or winner in action for the Italian giants for the first time.
And it took just eight minutes for the Portugal captain to appease the travellers.
However, Allegri chose to focus on his overall influence of the squad's morale and mentality since making the club-record switch from Real Madrid.
"This year, our ambition to win the Champions League is greater than in previous years, as is the desire to win the league, Coppa Italia and Supercoppa, but nobody is going to gift us anything before we've won them," he told Sky Sport Italia.
"It's normal that Ronaldo brings quality and international experience.
"Above all, Ronaldo can motivate the younger lads to grow, and help the whole club to develop.
"Nobody gifted Real the four Champions Leagues he won there, it was down to everybody working and making sacrifices. We need to do the same.
"People had told me he's a consummate professional, but results don't come by chance. We're talking of a player who has won the Ballon d'Or five times and been top scorer many times.
"He always wants to win and this proves that Juventus have signed a great player, both on the field but especially off it."