We once thought that the Earth was flat, and we were wrong.
Then we thought that the Earth was round, and we were wrong.
Then we thought that the Earth was an imperfect oblate spheroid...and we were right.
Some people would argue that correct is correct and wrong is wrong, but that's like saying that downloading a song is as bad as murder (again some people...)
That's science though, we were wrong when we decided that the earth was round, but to say that this wasn't progress is (in my opinion) ridiculous.
Darwin's ideas were not perfect either and they have changed a little, but they laid a foundation for a young and still evolving theory. You can't always just take something flat and make it into the shape you want. Sometimes you need to make it round first. So you're right, science isn't infallible, but that doesn't mean it isn't close and that doesn't mean that it isn't improving and that doesn't mean that it isn't important.
This is my issue with science......(flat earth is not science).........it is in a constant state of flux.......so when someone says science is proven I chuckle.