Not every follower is a potential customer
Let's start with something that should be obvious, but apparently needs saying.
Audience quality versus quantity matters because not everyone who encounters your business is equally likely to need, want or buy what you offer.
Imagine you're an independent wedding stationery designer.
You could have 50,000 followers who enjoy looking at pretty typography but have no intention of getting married.
Or you could have 600 followers consisting largely of engaged couples, wedding planners and people actively searching for stationery.
Which audience would you rather build a business around?
Ideally, of course, you'd like 50,000 relevant people.
Nobody's suggesting you should turn away interested customers because your audience has reached a charmingly modest size.
But the second group gives you something the first doesn't necessarily offer: a clear connection between their interests and your business.
That's what makes a relevant audience valuable.
Not the number beside the little person-shaped icon.