Alchemy. But that's no reason to still respect alchemists.
It turned out to not be the case, time after time.
There's no inherent meaning in how substances interact. There are laws, they're consistent but devoid of any meaning, on human level.
That's why I'm deeply scetical towards any New Age-style ideas.
What "philosophers" are we talking about here? Lakatos? Chomsky? Newton? Logicians? Or do we have some composite postmodern blowhard in mind? (Like any industry's products, philosophy's product quality varies with factors like producer. So specifics are important.)
There's a bias in physics culture against philosophy. (It's no doubt elsewhere too, but very apparent in physics.) But fortunately, there's many exceptions who like to take a step back and think about what they're doing.
Why?
"The world would be better served" carries a lot of cultural baggage.