First point: Just to clarify, you're calling Bacon a talentless hack? Bacon, the master of nightmarish imagery?
Second point: Define meaningful. Philosophy, science, photography, painting, all are essentially ways of passing time before death, if we want to use the cosmic scale; on the personal level each activity has different meanings to different people. I'm not a big philosopher, but I enjoy that much more than science. Science bores me.
Where is it written that philosophy can't evolve based on scientific findings? And what makes you think painting's not useful? Perhaps portraits aren't as meaningful, but even there, designing a web site for a musician I commissioned a painting of him rather than a photo. With paintings you can specify colors ahead of time and make something that fits for the design. So there's an example of an archaic medium being used for modern purposes.
I don't like very much your us-versus-them mentality here. I don't like your suggestion that there's such a thing as too much education. My policy is, to each their own. I'll continue to be fascinated by those over-educated idiots I call my friends, and you can continue to do whatever you choose with your own time.