>donating is generally done to organisations

Yes but these organizations do not produce anything. They just redistribute money, like you said they give out medicine or food. That is the exact equivalent of giving a man a fish.

>They are driven by usefulness while a company is driven by profits.

Yes and how do you get profit? By being useful. You trade money against value. You buy things that make your life better. Every single thing you touch has been created by a company not by a charity. All a charity does is redestribute the essential products to places who are unable to fish (produce) themselves.

I also find it funny you mention medicine and food, because all of those innovations (yes food has a lot of innovation especially in the supply chain and harvesting) are created by for profit organisations.