Except that Plushenko can score 19.6 with two quads, but no one ever gets 10.00 in any component category.
Chan can and sometimes does get higher TR (transition) and CH (choreography) scores than other skaters. But even if he does, that isn't likely to offset the high TES skaters like Plushenko can generate with their high-value jumps that Chan doesn't have.
Furthermore, other skaters (including Plushenko) get higher SS and IN scores
Here are some recent Chan/Plushenko component scores. TR and CH are bolded:
Total PCS, SS TR PE CH IN
40.20 8.10 7.55 8.15 8.05 8.35 Plushenko, Europeans 2010 SP
83.10 8.50 7.65 8.45 8.40 8.55 Plushenko, Europeans 2010 FS