I would submit for consideration the idea, that as a representative of the Federation, which is always interested in adding new members to its club, couldn't Picard be simply selling a version of the truth, of life on Earth at least, that while perhaps not snake oil, is heavy on the optimism, evocations of a philosophically idyllic existence, and one where the idea of want of any kind has no place, to help expedite winning over the potential initiates to making the "right" decision?
I'm not necessarily suggesting that there is a playbook, or rather script, that all command officers who are integral in making these contacts and presenting an appealing image of the Federation are bound to follow, but it would certainly seem sensible that the most attractive aspects of life on Earth, as an example, would be emphasized. After all, how much of that existence have we actually been shown? Please fill in the gaps that I'm inevitably missing, but what else of the contemporary version has been illustrated other than San Francisco, some vineyards, a bar in Marseille, New Orleans, and..... I'm not saying that there are significant overt conflicts going on elsewhere, but what is day to day life like for the vast majority of the planet's population, what inner motivations or desires drive their behavior, and does a pacific attitude extend to nearly all? It's been speculated before that there might be a globally accepted educational model that would be likely to inculcate the ideals that Picard espouses, but we don't really know about that, and certainly if such is the case, how many of its students sanguinely accept that philosophy and implement it in their lives as they grow up?
I guess I'm essentially saying that Starfleet is compelled to be the spit and polish image of what the implications of what they present as talking points realistically represent, but we can't actually verify that with ironclad assurance.