Most important is to improve stool consistency. If fiber can do that for you - why not. When walking around, a short relaxing of the sphincter or an increased load of the pelvic floor (e.g. when coughing or sneezing) can lead to leakage if the output is too liquid, even more with bloating. But I think that can also be a problem for people with a colon if they have severe diarrhea.