I haven't met any people who grandstand their good works to the world (at least not yet). But I have seen many corporations that make advertisements like this. They brag about how they collaborate with one or more charities, as if that's supposed to make you interested in their goods and/or services. To me, that indicates those corporations are not really that confident in their goods and/or services so they're using the charity as a crutch. What I believe really happens when people see these ads is that they skip the middleman and give their money or time to the charities themselves.
On a collective level, people need to have children so that civilization keeps moving forward. But on an individual level, not everyone can or should be a parent, even though Hollywood wants you to believe otherwise.
One of Hollywood's favorite tropes is to turn child-haters into child-lovers, regardless of how unrealistic the transformation is. ("Dennis the Menace" (1993) is the most bizarre example of this. Watch the movie and you'll understand.) They do this for a reason, though. They know that families with children are the most likely to see movies in a theater. It doesn't matter to them if those children are complete geniuses or total fools, blessings or burdens, goody-goodies or dangerous psychopaths. But how children turn out should matter to the rest of us. And I can understand people not wanting to have kids because they don't want to bring the next hopeless druggie or criminal mastermind into the world, especially now that parents can be punished when their children break the law.
