+1 If you don't have an amp on stage then you are relying totally upon the sound desk to give you your sound, If you feed them the sound you expect to hear, there's a good chance that it will be passed through the system as is. If you rely on them to apply effects, then in 99% of cases, sorry, out of luck! The blokes on desk are not mind readers so their job is basically just to present the sound "as received". FWIW, I do not use effects either, but I do see the benefit.for me - we don't use any amps and use in ear monitoring - I found that DI non fender style bass to a team of amateur pa folk with a new digital desk wasn't great for anyone.
my effects give me a little more control over eq and other than that send a more polished amp like signal to the desk so it can slot in thr mix easier