Great criticism!
The film, Vertigo, by Alfred Hitchcock shows us that any obsession could be incredibly misleading and destructive. The retired detective could no longer distinguish between reality and misperception or twisted reality, which was quite ironic and unexpected of a professional detective like Scottie.
In fact, I think acrophobia was not Mr. Scottie’s Achilles’ heel. He could not resist temptations, and because of that, two other people lost their lives.