I'm afraid that you're incorrect. Chrysotile is just as carcinogenic as crocidolite, in fact that data referenced in this article references morbidity and mortality related largely to the former because the latter's use was discontinued.

Regarding not disturbing the asbestos, the issue is that asbestos in situ can be easily disturbed via methods over which we have no control. It can take as little as a minor installation to disturb it (which is what resulted in the mesothelioma-related death of a teacher a few years ago).