I think this is an issue with merge, you have very limited control on how it is presented.
I believe you could create some code to modify the font of the result.
Have you thought about collecting the submitted information in a database for reporting and analysis?
You may want to check out the Database Accelerator. It would allow you to collect all of the submitted information in a database, then instead of merge you could view and process this information with a specific admin form, excel, or a SQL report. These would give you much more capability and flexibility. It even comes with some templates already created for Admin process, for the secondary process of forms.
Qdabra Database Accelerator Suite Version 2.1 - Developer