Carlton conceded the first two goals on the match and trailed the Power by three points at the main break after a scrappy opening half.
Both teams were unimpressive in the early stages, as they continually burnt simple targets by foot and wasted possession in the transition from defence into attack.
"I thought there was a little bit of selfishness in the group in the first half," Ratten said of the Blues.
"We weren't composed with the footy. We kicked long or we miscued short passes going in [to the forward line]."
"I thought around stoppages we didn't quite have it right as well. We allowed them a little bit [more] freedom compared to what we've done with other teams in the past."
But the Blues found another gear after half-time to pile on 11 goals to one in an emphatic second-half demolition.
Carlton trounced the Power in all departments, winning 95 more disposals, enjoying 11 more inside-50 forays and showing more desire for the ball with 23 more contested possessions after the main break.
Ratten said the ability of his players to reclaim the ascendancy after the Blues' sloppy start was the most pleasing aspect of the victory.
"I thought our application to the task just lifted," Ratten said.
"It was really encouraging that we stuck to our task and got the job done. Today was really pleasing how we just ran the game out."
"That's the maturity of the group."
Carlton's small forwards relished in the difficult conditions at AAMI Stadium, with Andrew Walker booting a career-best six goals while Jeff Garlett slotted four goals and Eddie Betts chipped in with two.
"He was the one shining light for us down forward that really got us going as a team," Ratten said of Walker's performance.
"Today he really helped us stay in the game when maybe we couldn't score."
"[He's] got a lot more confidence and I suppose more consistency in his performance."
Hard-nut Mitch Robinson also provided plenty of grunt in the trying conditions, amassing a career-high 34 disposals and eight clearances to give the Blues the edge in the second-half.
20-year-old Chris Yarran was another Blue who was singled out for praise by the coach after his 25-disposal contribution against the Power.
"He's starting to find a real niche in our team and play really good football for us."
"At the moment he's playing good consistent footy for us and he'll just keep working at that."
"But he's an enormous talent and who knows how far he can go."
Carlton now looks certain to be a genuine finals contender, with a very kind fixture giving the Blues the next three games at Etihad Stadium against interstate sides.
But Ratten said the focus still remains on the task at hand.
"We're not going to look at three weeks ahead or two weeks [ahead], we are really looking at next week," he said.
"I know it sounds boring. But it's really true for us. It's about just sticking to the process and getting the job done."
And the news just keeps getting better for Carlton, as the Blues could be buoyed by the return of key-position player Matthew Kreuzer from a knee reconstruction next week against the Brisbane Lions.
Kreuzer, who hasn't played at AFL level since round 13 last year, has impressed at VFL level over the past three weeks and would be a welcome recall into the senior side.
"As a coach you admire his work ethic on and off the field," Ratten said of the 22-year-old ruckman.
"I'd love to put him in, but I'm not going to put him in when we don't think he's quite right."
"He's played pretty well last week. But we'll assess that during the week."
Max Phillips covers news from AAMI Stadium for afl.com.au. Follow him on Twitter: @AFL_MaxPhillips
