While we're at it, let's not forget that the luctative and advantageous
(to nearly everyone) PC Clone market was all enabled by the lawful but
"unethical" reverse engineering of the IBM PC BIOS...  (A somewhat fuzzy
case since IBM also published the full source of their BIOS.)

One can argue levels of ethical behavior, of course, and perhaps the ends
does justify the means...

BillW