Well, ignoring how the best players both draw most of the calls and get the chances to capitalize on them, let's look at powerplay opportunities between seasons, then:
443, 407, 209 (357 prorated), 413, 336, 380, 359 (avg. 385)
vs.
480, 398, 351, 341, 304, 291, 271 (avg. 348)
Assuming a conversion rate of ~20%, you've highlighted a potential ~8 point difference if Crosby was involved in every conversion. Of course, we're ignoring who is drawing more penalties between these two guys to get these opportunities in the first place. And we're also ignoring that Crosby has relied on powerplay opportunities to score 37.2% of his points, vs. Lindros' 30.4%, which implies that Lindros was more "immune" to fluctuating PP opportunities with respect to offensive production.