People (in the individuals sense) try to look for simple, mechanistic theories to explain the things that People (in the collective sense) do. Wasting effort, angels on the head of a pin, etc.

Each and every cause has many differing causations and all the people involved have differing motivations. You can generalize but you must realize that's the best you can do...

For each event then, one must look below the surface causative factors for the real, not expressed, motives and...

Ah, humbug. Wasting pixels I is -- what Slap said!