Mistakes vs. "Mistakes"

It's all to common to hear in business these days that failure is ok, in fact, we should promote failure. If mistakes are failures than I am here to argue that there are good and bad mistakes (or mistakes vs. 'mistakes'). Bad mistakes are such things as typos, inaccurate spreadsheets, forgetting to call someone back, etc etc. Little good, lotsa bad. Good mistakes are trying out a new system that goes wrong, making a prediction on the future (assuming that you couldn't get more or better info) etc etc. These kind of mistakes often provide you with greater insight next time (a.k.a. experience).