the board doesn't actually contradict the rulebook here, it's just how you're interpreting the reminder text on the board because of where they placed it. Not to say that your interpretation is unreasonable. But it could be viewed either way under different interpretations. The right one is the one the rulebook says
Why? It's clearly at the fourth policy... Hitler may not be able to pass a fascist law so the clear implication is that you need four fascist policies.
I also don't see a contradiction... Fascists win by electing Hitler after 3 factist policies have been enacted. so this possibility is only open when running for the fourth fascist policy... and that's what is represented on the game board. IMO
I have to agree that the board is confusing in this regard - I had to check the rules the first time I played, and a lot of first-timers I've played with have misinterpreted it. The problem is that all the effects in the spaces only happen when a policy is enacted on THAT spot, but the 'Hitler wins' condition starts happening when there is a policy enacted on the PRECEDING spot.