> philosophy gave birth to all intellectual forms of knowledge
I think this is an utterly unsupportable claim unless you're willing to simply define philosophy as encompassing all other forms of intellectual pursuit. Intellectual knowledge (whatever that means) existed long before the Rig Veda and Socrates.
Above and beyond specific examples, it's important to note that world affairs are influenced considerably by people in positions of power. Such people tend to be well educated, which often means they've been exposed to and influenced by contemporary philosophy. For instance there is a large body of work on international politics. I don't think it's too much to assume that policy-makers at that level have some knowledge of current discourse in the field. For instance the debate about whether a world government would be a good thing.
It's my opinion that if scientists today had a better grasp of philosophy, then the string theorists and researchers studying dark matter would have come up with tangible results already, either by changing their models to actually make predictions, or dumping their models altogether and study alternatives. They would have tangible results instead of always being surprised that we can't find dark matter or surprised that new particles weren't produced at a given collider. Instead of demanding that larger and larger colliders be built, they would reflect on the models they have and attack the weaknesses. Instead of making increasingly sensitive instruments to find interactions between detectors and dark matter that might not even be there, they would give more serious considerations to alternate theories of gravity.