Recording/Mixing/Mastering Gain Levels for synths

I have rarely ever touched the gain control on a track. To me they are last resorts for poorly recorded audio or badly setup soft synths. When using a synth most if not all have a volume control.  Many have a mixer as well. The idea that one would not use these controls seems odd to me. True its hard to cause Sonar to clip but that may not be true of a synth internally. The gain control wont have any effect on what happens to the signal before it reaches it. 
 
In Kontakt for example there are two places to adjust the level for an instrument . One is on the instrument itself at the top to the right and of coarse the mixer. One should not have to resort to the gain in Sonar. Between these two controls one should get a good signal then in Sonar use the faders to balance the overall mix. In BFD3 there is a global volume control plus the mixer.  
 
If one looks at soft synths as similar to a hardware synth and adjusts it in the same way one would for a hardware synth the gain should be left at unity.  
 
I may be advocating more work for the user but I think the results justify it.