Well, American science is devoted almost exclusively to the metric system, and yes, it's based partly on the reason that everyone else uses it, along with the fact that it makes more sense. A standardization is advantageous when science relies on peer review and grows globally, not just in the US. We don't need to exclude the American Standard. We can still keep it, but it's not being done based on practicality and efficiency. It's simple resistance.
I believe eventually, the US will go metric. It's already creeping into our way of life like an insidious but imaginary monster. How many milligrams do your common medications come in? We may not be dragged into metrics kicking and screaming like spoiled children. Children eventually grow out of things.