Incest is wrong, right?

It goes without saying that incest is ill-suited to the human race.

I don't just mean legally, morally or ethically, but more so on physical or biological grounds. The make-up of our DNA demands diversity, although this is also tempered by natural selection: successful characteristics become more popular over successive generations – a fine-tuning effect, if you like.

But diversity is key.

And in the words of those towering pillars of pop philosophy, Groove Armada, "If everybody looked the same, we'd get tired looking at each other".

So forgive me the slight exaggeration, but then why do so many brands look as though they've been designed by one of the inbred hillbillies from the 1972 film Deliverance? Why do they seem so intent of denying themselves the necessary advantages of diversity, opting instead to settle for more of the same?

In their book Funky Business, published in 1999, Kjell Nordström and Jonas Ridderstråle wrote about what they termed the surplus society. In their words, "The surplus society has a surplus of similar companies, employing similar people, with similar educational backgrounds, coming up with similar ideas, producing similar things, with similar prices and similar quality".

Sounds like the commercial version of inbreeding if you ask me. People who are so scared of being different that their anxious conservatism tries to eradicate our fundamental need for diversity.

In business as in life, it is the drive for similarity that is unnatural. And our need for diversity is no less a necessity for brands.

But in spite of this, a brisk stroll down a supermarket aisle quickly becomes a blur of swooshes and swirls as brands seemingly decide it's easier to copy than compete. In the profile piece that appeared in B&T a couple of weeks ago, I wrote that most of the Australian packaging industry think "it's acceptable to regurgitate the same old boring ideas, year in year out. Even the smart people I know...can't seem to help themselves". As unfortunate as that might be – and assuming the inevitable standouts – that statement's true. The same goes for a catalogue of corporate brands, from law firms to the world of finance.

We all know that incest is wrong. Don't let diversity die.