Oh, Lawd, this should blow up quite nicely....
There's not really one answer to this, other than, yes, you should step out front when it's practical and see if your bass is sounding like you prefer. Whether or not you can do anything about it can turn into an epic topic.
Have you heard your tone out front, or heard any comments from other players about your tone? (One reason, among several, that I run wireless, even on small gigs)
Some sound guys can be trusted to make it sound good within the context of the overall mix. This means good, even tone, not too bright, not too deep (unless you are going for such a tone, which is fine, too). Also, he will work to get any effects on your bass in the mix, too.
Unfortunately, some sound guys will not give it much attention. They are probably limited by the PA they have, or just not capable of making a good balanced mix, or they are on a time crunch, or in the case of a lot of house sound guys, your band is just one more band on the list that he has to deal with as part of his job. Anyone in any profession can get burned out after a while (I did on the PA business, fortunately it led me back into playing again) (and that's a scary thought in many professions such as medicine, construction, nuclear physics

, and other critical jobs).
And having been faced with less-than-optimum production as the bassists in several bands, I've run the gamut, from the sound guy asking me what I like for my tone out front (My response is, not too bottom-heavy, a little bit of crunch, but first, make it work in the mix and make sure the vocals are up front) to looking over a situation (as a couple of weeks ago) and telling my bandmates, "guys, this is pretty hopeless. Let's just get up there, play our asses off, smile, and don't worry about the production because it's going to SUCK". And any speaking with the sound guy is just going to piss him off and probably make things worse. Just run with it". (Please, note, this was obviously an extreme situation. But they are out there) And that job got us more booking leads than any one job ever has. How odd is that!
One last note, it's entirely possible that you have a great-sounding instrument that takes very little work to sound good (I hear that about my Jazz V bass, which was the way I intended it).