Art is either plagiarism or revolution
Apple's Steve Jobs might have felt aggrieved at the success of Windows, but not half as much as the poor saps at Xerox.
Yet the university student whose years-old PhD thesis about Iraq was lifted word-for-word and presented as UK intelligence - he felt pretty good about that bit of plagiarism. Made his day.
Sometimes the results are good, sometimes bad. Eventually though, the truth will out. It always does.