Well I didnt remember what happened in 2003, but it does stand out that the only showdown he won in his ferrari dominance years is an 8th place while those that arent showdowns are 1st and 2nd in one case.
Also interesting to point out that in other showdowns drama always happened, whether he won or lost. 1997, trying to crash Villeneuve, 1998 the car stalled and then the tyre exploded, 1994 he almost lost the car and because of that he collided with Hill in the next turn, 2006 technical issues in qualifying, then a puncture in the race and according to what you say in 2003 pretty much the same happened (bad qualifying, forced pit stop)
There is definetely a pattern here

Never a clean race either by his fault or the cars' fault. its interesting, you gotta admit ;)