Some bland ‘brand’ isn’t noticeable. And they’re all different, so you don’t pattern-match ‘Aldi’.
Our eyes just pass over it. And so Aldi is acceptable in your middle-class lifestyle even though it’s the cheap one.
It’s genius.
They help all this by stocking the real branded versions of some products, and the fact their own brand products look roughly equivalent on the next shelf reinforces all of this.
Aldi have successfully manufactured a feeling that when you buy something cheaply it’s a _bargain_, rather than that you have compromised on the product you actually wanted to buy.
They also very hard when legally challenged for trademark disputes on their clone products with similar packaging, it’s certainly an important part of their strategy as far as they’re concerned.
It's not even about cost, but taste and showing off to the neighbors at the next gathering.