Philosophy is as useful as ever. The trick would be to notice that what we call philosophy in the Western academic world, which is not useful, is a narrow approach and only a small part of philosophy.
There is much discussion of the usefulness of philosophy in academia at this time and the professors are having a tough time with those who believe it has none. Philosophy remains as useful as ever but it will not appear so if we only know what is taught in our universities.
I'm in danger of 'banging on' too much but would point out that what distinguishes Western academic philosophy is a rejection of most of philosophy. Given its subsequent uselessness we ought to be questioning this rejection.
You're right to say that our society does not value philosophy much but this is the fault of the modern philosophy department and not an indication of the uselessness of philosophy. We must be careful not to confuse the workmen with the tools.
To 'consolidate these differences' would be to get rid of them. This would require studying philosophy as a whole and seeing the bigger picture. In reality there are almost no differences between philosophers in respect of their established logical results. They all agree that metaphysical questions are undecidable. It is the variety of ways in which they respond to this result that creates all the differences. If we have no interpretation for it then philosophy becomes useless. if we have one then it becomes invaluable.
The problem is that there is only one reasonable interpretation and it is rejected by the Western tradition or 'Academy', leaving it stranded up a creek without a paddle. To give philosophy utility would require adopting a dispassionate approach and studying the whole of it.
You might like to check out a professional website called 'Daily Nous'. It's been a while since I visited but they usually have long discussions going on about how to show that philosophy is useful in the face of all the current criticism. You won't find a solution there but the discussion is interesting for its lack of ideas.