It depends, though, on what kind of "worrier type" a person is. For some people, increased ability to monitor just creates a vicious cycle where you never really stop worrying, especially because there is a whole industry offering endless solutions to monitor more and more stuff.
I don't know your wife, obviously, so I cannot say whether this would apply to her, but to me, being a parent is partly about learning to deal with being worried and then finding ways to stop worrying. Whenever I see one of Maggies posts come up and it's yet another "thing you can be worried about as a fresh or soon-to-be parent" (tm), I sometimes wonder whether she lets herself worry too much.
In some aspects, being a parent just plain fucking sucks. It's terrifying as hell. You give your entire heart to the most wonderful little being and the world pretty much does nothing but try to kill it, constantly. And then it grows older and chases danger after danger, as though it was trying to bait all those terrible things for attention. You have to find your level of numbed comfort with the potential horrors, because at the end of the day, mostly what kills children (aside from plain old disesase) is just bad luck. There are tons of things that nobody can be prepared for and that you shouldn't try preparing for because you'd never ever succeed.
Being a parent (again: to me) is about making a decision on what to worry about. Monitoring something that you're worried about means that you may have found a way to cope, but it does not necessarily mean you have stopped worrying. At some point, you need to stop worrying or else it will eat you alive.
So: If you start monitoring something, always do so with the intent of, some day, stopping to monitor.