Obviously, taken in context (that other companies might not tolerate higher costs and longer development times), the "as a result" line does not imply that high

Obviously, taken in context (that other companies might not tolerate higher costs and longer development times), the "as a result" line does not imply that higher costs and longer development times are the cause of far higher revenues in general. The "as a result" line implies that for Apple, higher costs and longer development times has yielded more revenue. The subject of the line is Apple, not the other companies.