McNamara Fallacy

The McNamara fallacy (also named the quantitative fallacy) originates from Robert McNamara due to his use of it while declaring that the Vietnam War would be won solely due to a lesser amount of casualties. The fallacy is essentially an oversimplification of data, which, in turn, can make the data false or improper. When used a certain metric or measurement is used to measure success or failure. It ignores the complexity of a situation and makes a conclusion based on surface level information.
An example of the fallacy would be measuring a basketball player’s skill based on solely accuracy. When there are a multitude of factors to consider such as: teamwork, passes, rebounds, etc. 
An example of the fallacy would be in “Spiderman: Homecoming” in which Vulture is defeated but much of the city is in shambles. This is because the damage caused by Spiderman in his hunt for justice is exponentially more than Vulture was causing.