WHY DO PEOPLE MAKE VIRUSES, TROJANS, AND WORMS?

I get this question asked of me quite frequently and I suppose I've been pretty close in my summation after reading a white paper by Tom Kellermann, VP of Cyber Security for Trendmicro. Obviously quite a bit of  time and studying various trends went into the paper which I encourage you to read via download on their website or HERE (right-click and select download, left-click should bring it into view).