Pie fillings don't usually rise. There is always a gap between the top of the pie plate where the top of the crust is and the filling.
Here is a key lime pie with merangue. You can see the actual lime filling is quite low.
More pictures showing pies and the filling in relation to the top of the crust:http://www.tonidunlap.com/pumpkin_pie.jpg
This one looks like it's up to the top of the crust, only because there is merangue, but the actual filling is about 1 inch lower than the top of the crust.http://www.hormel.com/images/glossar...onmeringue.jpg