As Laura said, it's part of the baby milk marketing laws that many countries have signed up to largely to increase BF rates, but also, as you say, so new mums aren't getting swamped with marketing/advertising pushing formula feeding. Especially an issue in some less developed countries where water sanitation isn't necessarily what it is elsewhere.
As you say, *happy*, there's enough choice there on the shelves without all the manufacturers trying to put across why theirs is better than someone else's.