Have you ever modified a 10_000 line module to use strict? You literally have to rewrite it, and everything else that uses it, from scratch. (This can easily get into the 100's of thousands of lines of code.) There is often no other way.
Oh - does your quiet time also include writing the test cases? Refactoring without a test suite is like getting very drunk then tightrope-walking across the Niagara falls. Not something most of us feel is safe ...
Being right, does not endow the right to be rude; politeness costs nothing.
Being unknowing, is not the same as being stupid.
Expressing a contrary opinion, whether to the individual or the group, is more often a sign of deeper thought than of cantankerous belligerence.
Do not mistake your goals as the only goals; your opinion as the only opinion; your confidence as correctness. Saying you know better is not the same as explaining you know better.