I actually agree with that. A lot of the talk regarding Akhtar's off-field blips, his injuries and his 'injuries' have much truth in it, but other times I think they are overblown and cover up his talent. He is my personal favourite bowler to watch. He is pure excitement and I remember just last year Pakistan's first spell against Australia when they had them 4 or 5 down before Langer brought Australia back. Don't remember where it was played at, but I thought I was in for a summer of some great Akhtar bowling. He let me down, both in the tests and the ODIs unfortunately, but when he was on the ground he was generally great to watch.
Your other point is valid too. Akhtar isn't always on the field, but neither is Bond... and for that matter, ironically Lee until recently (in tests). They've just all been off the field for different reasons. Akhtar for both injuries and his attitude problems, Bond for injuries, and Lee for erratic form along with being in a side that had 3 pacers bowling awesome together for something like 18-24 months. All three have never been consistent bowlers for one reason or another. Unfortunate really, because pace is a beautiful thing to watch. Its great having the McGrath's and Pollock's bowling brilliant patient line-and length spells, but the excitement of raw pace is always great for cricket too.