Everyone on social networks like Facebook want to get more likes, comments and shares. It shows that they have some kind of influence and people find what they share cool. It's in our nature to want attention, if done intentionally or not. Businesses also want the same kind of attention, it's what makes people like the brand and feel like they're actually interacting with the brand.
Social networks like Facebook and Twitter have completely evolved the way businesses communicate with their customers and fans. It's become a great way to connect directly with people and for those people to feel like they're actually talking to a human, instead of picking up a phone and have annoying automated machines talk to them.
This great infographic relates to anyone on Facebook and shows great facts on what gets the most likes, comments and shares.