Yes, Tiralongo really worked with Contador in that Giro stage
And he had already had the Tour won when he refused to contest against Schlecks in Grand Bornard. With Andrew in Tourmalet he could have contested if he wanted to.
With Rujano in Grossglockner Contador did most of the work.
Also I dont see what cycling advantage he gained from not contesting final mountain points in the Giro so that Garzelli could win.
I know the reasons not to like Contador but some of the people who really hate him try to find faults where there are none.
You might want to consider him more of a Long John Silver, whose capable of many gentleman qualities, but evil on the inside, rather than a stone cold pure evil Captain Flint.