This is a very difficult topic, as sometimes I think the opposite end is true, where a company like mine spends a billion to develop their own solution, which is worse than anything on the market, and worse than our old systems. Executives hallucinating that they will become the next innovative tech company are also a problem, as they vacuum up a lot of resources from the market, and then everybody complains how you cannot find an architect anywhere.

I think companies should do a make-or-buy decision for each tool, and reevaluate this regularly. Of course this requires extra work, and letting go of politics (and sometimes corruption), so never going to happen.