It is completely ok to use commercial software in a commercial environment. It isn't and shouldn't be the goal of open source to provide the best consumer product.

In the grand scheme of things I believe open source at least provides serious competition and that commercial software has its own work to do.

Also, a lot of not all professional work uses open source components. Research is a field where it shines and there it matters a lot.

Adobe has to work for its money as well as its competitors get more powerful by the day. And everyone hates their creative cloud.