Brian,
I like the idea of mathematics as 'something that life does' because it makes no value judgment. After all, rape is something life does, too. Makes it possible for me to separate mathematics from mathematician, and accept Bieberbach's results without imposing my own prejudice against Nazis and rape. I take it, that you mean that meaning is an objectified thing--a higher meaning than any one person can impose. After all, some deem Nazis and rape 'something that life does' and are proud of it besides. One is reminded that philosophy was once known as moral science.
" ... something that sufficiently evolved life does because in the appropriate context so doing is of value to life." Ultimately. The jury is out on the context for 'sufficiently evolved'. And no research mathematician proves theorems because she thinks it will add value to life--though it does, in the long run. Theorem-proving is 'something that life does' and it gets the mathematician through life. Perhaps its value is just that.
There is no doubt in my mind, though, that meaning precedes the construction of a mathematical object. I embrace your premise.
All Best,
Tom https://fqxi.org/community/forum/topic/3124