We rarely take complete responsibility for our actions. We must see the depth, goodness, vulnerability in the people who thwart our dreams. Another problem with characters in real life compared to those in drama is the transformation. In real life we try to grow and change, but rarely do. Or we change a bit with changes in time and space, and then regress to our former selves.
Audiences like to see characters transform as a result of their trials.
They want to see characters do what they can't because otherwise, they can just stay home and stew in their own dirt. When we create objectives, characters and scenes from real life, there is a spontaneity, unique quality that gives the script a special energy and style. Yet Shakespeare kept his characters fairly achetypal, and while the emotions may have come from his own life to some degree, the circumstances were always disciplined in a dramatic way, and the stories were even plagiarized from old myths. This is one reason, besides his beautiful poetry and depth of psychological insight, that make his plays transcend time and space, language and culture. But screenwriting isn't the same as classical stage drama.