Although your article is more nuanced, your title is downright misleading. You're describing drugs that are shown to be equally useful as products that are already on the market. These are certainly not "worthless" medications, just not "value added" ones.

Often patients will have different responses to two different drugs that we believe have the same mechanism of action. This could be due to subtly different interactions with receptors, different pharmacokinetics, or interactions with other drugs the person takes. It is useful to have multiple drugs from the same group available to use.

You make a valid point about whether patients benefit from Big Pharma pushing these me-too drugs, but let's not throw out the baby with the bath water.