Well, iv'e noticed the main reason people get hacked these days are for;
1). Money 2). Revenge
Money could be; Hacked paypals, bank details sold on to next person, Accounts (RuneScape, Rapidshare, MU, eBay + alot more).
Revenge is worse in my opinion, all the above can be recovered. When you've ran the worst .bat in history and it changes all .lnk into .txt files, Then you're screwing