Board Thread:Wiki Discussions and Support/@comment-1466742-20150201025211/@comment-1251315-20150202193026

That would be redundant. Within the two opening paragraphs of Konoha, for example, I can find out everything I need to know about the place (current leader, strength of village, even an image of the location itself and an image of the logo used on their headbands).

Infoboxes should be for things that are important but can't be written directly into the article. An infobox which just repeats the contents of the article's lead is redundant and wouldn't serve any purpose.