How many more lives have been wiped out thanks to advanced tracking and deployment possible because of those same satellites?

Not a lot. Like, certainly less lives than were taken in wars prior to the advent of space travel. Of course satellites help militaries attack specific targets, but humans are gonna go to war no matter what. It might sound cold and evil, but satellites make for efficient warfare, and efficient warfare reduces civilian casualites.

But let's not speculate. Let's take a look at wars by death toll. In the top 100 deadliest wars in human history, the ones that have happened since we started launching useful satellites add up to less than half of the death toll of World War Two alone. Combined into one massive superwar, they wouldn't even get the bronze medal. Satellites don't help armies kill more people, they help them kill fewer.

How many more planes can fill the skies, or giant ships fill the seas

What does that have to do with satellites? We've been launching boats and planes since long before GPS made navigation even easier than it already was. If you want to blame a technology for that, blame the spring-driven clock. We would have launched these boats and planes with or without GPS.