No, not really. If I recall correctly, SharePoint is returning the markup with the data, but the calculated value will show the value for the field, not the inner XML. Now, honestly, off hand I don't know if there a non-code away around this -- it seems like you may be able to save your form as source files and manually modify the data type for the field in your secondary data source so that it can be bound to a rich text control and thus display rich text in your form. It seems more likely that you may want to copy this rich text from your list into your form. You might want to check out
qRules if you'd prefer not to write code to do this....I think the command for copying rich text would handle this for you (there is a free trial, so you can give it a try and see if it solves the issue for you...)