Leonardo da Vinci’s “Salvator Mundi” was sold at auction in 1958 for £45, and again in 2005 for under $10,000. In 2011, it was authenticated as a Leonardo original. It was then sold in 2013 for $75 million, sold again for $127.5 million, and later sold at auction in 2017 for $450.3 million.
the terminator did the same but not for painting...
That's not 100% accurate. He, and many before him dating back to Polykleitos of Classical Greece, studied the the aspects of proportion in nature (and the human body) to find the most perfect balance for art, architecture, and engineering.
The Vitruvian Man was an attempt to correct the inaccuracies of the calculations of the ancient Roman architect Vitruvius.
The calculations were used to create paintings and sculptures of the "perfect" human form, but not solely for that purpose.
I think you split the hair too fine. "Only" was an indirect reference to enhance the skill, not an imperative sigular aspect.
This is correct. Opinionated, but correct.