Sorry Sebastian I cannot see your point here. Mancinis reputation far exceeded good prior to managing City, having won three domestic titles on the bounce, set the record for most number of consecutive wins with Inter Milan which followed up winning trophies (cups) at Lazio and Sampdoria.
In Italy that would and has given him legendary status as has his stellar playing career and subsequent mgmt of the national side. As your point related to his future earnings potential, as a reason he wrote the positive comments to City fans, the likelihood is that will be the main driver and country of his future earnings potential. In fact I doubt I have seen him in the UK since he left, let alone earning a fantastic income from media engagements or links to the club etc.
I think the more likely reason he did it was because of the respect he held for the fans rather than a method or future-proofing earnings.
Nice to see you posting though Sebastian, although we disagree here.