Have you ever seen a celebrity in real life and you feel like you know them even though you have never met?
Showing up on a regular basis and providing value as best you can elevates your authority and builds trust and familiarity.
In other words, if your content comes from a good place your followers will feel like they know, like and trust you already.
As a business, the reason you need to be consistently creating content and putting it out there is the mere fact that it is difficult to predict when a prospect is ready and willing to buy.
So if you are only visible every now and again you run the risk of not being top of mind when the time comes.
Consistency is far more important than most give it credit for.