This is an exciting topic.
Personal taste is often - so to speak - the crown of human judgment. But it's less personal than many people think. It is shaped by society, environment and upbringing. It is within these conditions that we define beauty and ugliness. The acute problem: both designations are associated with pleasure and disgust. Disgust and possessiveness for the sake of pleasure leads to, in the broadest sense, war, murder, manslaughter.
The spiritual root is desire, that is, liking and disliking. Desire is responsible for suffering. Desire is like a piece of meat. Social and personal likes and dislikes circle it and stick to it like flies. You can wave them away (Reason) or or install a fly screen around them (Puritanism, Christianism) - but the flesh and temptation remain. To get away from this urge, the only way is very radical. So far is known: That is Buddhism.
What we could do, however, on a less radical level, is to submit to the present state and thus accept the beautiful as well as the ugly, and especially one's own personal view - but to try to separate it from lust and disgust, at least in the sense of self-knowledge. Hence we might do less harm to us and others.
A real artist does this consciously (most of the time) or unconsciously (at least), because the appearance, the illusionary character, their nevertheless undeniable existence and their effects are his subject. (I recommend the works of Auguste Rodin, a French sculptor, 1840-1917).
For me it is still true: to have found the right one means that she remains the right one. This refers to the appearance as well as to the inner being and that all in relation to my taste. * And I think many others see it the same way.
That we can manipulate this in SL, does that make us artists? It could be...
* There is this ironic cliché as a joke, where the man, after the woman married him, mutated from Adonis to beer-drinking fatso, lying on the couch, unshaven, smelling of sweat. Well, where are the inner values now? All right, if they are still there?