"The only thing that's relevant is whether or not I find it useful. And I do."
Exactly, exactly. The measure is, "Does it work?" not "Is it logical?"
Nightning, the fact that elements of your chart contradict each other does not disprove the validity of the information. It shows that you are not internally consistent at all times. It shows the different ways in which you use your different energies and where they might conflict. It shows that you don't understand what you're reading (which is pretty nigh impossible anyway, the way it is being presented). The great art of astrology is synthesis, it calls for a high level synthesis, which is not possible from a computer report. The computer report lists the individual elements without synthesizing.
Venus in Scorpio means that Venus was in Scorpio when you were born. It means that you are possessive and intense, you demand a great deal of loyalty and you tend not to forgive if you don't get it. You may use your sexuality as a way to bind your mate to you. You do not take affairs of the heart lightly. You like intensity and high contrast in art and music.
If that doesn't fit it, it either means that you are very young and don't know your own Venus nature yet, or, more likely, that you were given the wrong birth time, OR that you have something else in your chart that ameliorates your Venus to a great degree, although that is a hard Venus to get to lighten up. (I have it, too.)