I'm actually a pretty strong supporter of keeping the style of the code you've been given. We've got old code and new code. Injecting new style into old code makes it harder to read and I think it's better to conform on that front. There are limits of course. There is simply too much old code with not enough tests to warrant running over the old style. Too easy to introduce bugs with large scale changes. That code gets the kid gloves treatment until we can define WHAT it does so we can fix it.
A standard I can point to at work that's been gone over and thought about is really something I hope we can get to.