The idea here, AFAICT, is that the right intention matters even if the implementation is lacking and imperfect. If the intention is there, the implementation will improve.
The dangerous line of thinking would be that a good intention somehow justifies doing evil things, and not by mistake but knowingly, for an ulterior greater and noble goal. But then the intentions would include doing an evil thing as an intermediate step, and, as the comment says, the intention does matter.
The dangerous line of thinking would be that a good intention somehow justifies doing evil things, and not by mistake but knowingly, for an ulterior greater and noble goal. But then the intentions would include doing an evil thing as an intermediate step, and, as the comment says, the intention does matter.