Carmen and Kelly aren't interesting or pretty enough to be influencers
That picture of Carmen wearing what looks like a potato bag to Rebe's bday dinner made me laugh tbh. Both her and Kelly don't know how to dress, they both look matronly and thus can't really do authentic fashion/beauty content but they also don't have enough personality to do vlogs or other types of entertaining influencer videos. That's why KP sticks to exploiting her children because everyone who follows her only see her content as a way to get a peek into Max's life and children. Carmen thinks her finance career makes her stick out and be unique but no one who follows WAG content actually cares about "grown up" stuff like that, they want the glitz and the cute clothes.