In India, Flipkart is often criticized for "copying" Amazon's idea (not that "sell stuff online" was revolutionary to begin with).

But the thing is, Flipkart entered the Indian market before Amazon.

As a consumer, I derived more value from Flipkart's "copy" that served me than from Amazon's "originality".

Same with Android. As a consumer, Android may have copied iOS, but Android's copy was far more affordable to me, and hence, I derived far more value from it than the original.