Well, this has happened in the past. At a tike when bitcoin is still in its young and starting phase. But even then, the bug problem was easily resolved by the responsible people behind the bitcoin's codes. Which is why I think that exploiting bugs as these if there are still any would be pretty hard. Although it may not he impossible, a person who'd pull off such a feat would be better off earning more in advertising his skills and getting jobs that would gain him better benefits.
Yes, I do agree with that. That person should get real job instead. Because btc developers are always on this that they won't let other people with ill intentions ruin this wonderful creation of Satoshi. These hackers should use their skills in other valuable activities. They may not get huge money but it will be self rewarding.