Why are non-inventory products showing up in the selectable items for time sheets?

I ask because we sell both products and services, many products for which we do not track inventory. 

Our employees must track their time via the time tracking feature in QBO. The problem is that we currently have non service items available to select when the specifying the service rendered in the time tracking (single time activity and weekly). If I were to give you an example of a construction company:

Service/task = painting labor

Non inventory product = Latex paint

In the time entry section of QBO, the drop down menu for available services will show both painting labor and latex paint. It is not correct to show a non-inventory item as a service to be tracked. I don't want our employees to be able to select "Latex paint" as a service since this is not a task/service, it is a product.

This will become especially problematic as the list of non-inventory product grows, it will create a significant amount of clutter in the drop-down menu of the time tracking section and lead to incorrect time entries.