I just played a game as Sejuani, super late game, we caught Fizz and Bard, the mid inhib was open and we have a minion wave and our Yorick, Lux and Caitlyn decide they want to do Baron instead, which they didn't start, while me and Leona were going down mid and pinging them to come with us. They didn't come with us, of course. Long story short, we ended up losing the game because of a bad teamfight afterwards.
Scrubs, please learn what MACRO means and stop tunneling for these "juicy" monster buffs when you can WIN the game for FREE.
Sincerely, a person that prefers victories over Baron and Elder <3