Are high cards overrated?

[Overdrive]

Almost everyone recommends playing 4 high connected cards in O8, because if the flop comes with high cards you of course will be in good shape to scoop and win high. But in Bill Boston's book where he ran 100,000 simulations using Wilson software high cards did not come out looking too good. For example, 10-J-Q-K has a negative ev in his simulations and 10-J-Q-K suited only comes out slightly ahead, winning high just 5% of the time and scooping just 9% of the time when played. So it seems the value of 10-J-Q-K comes only from being suited and not from it's high card potential.

So do you follow the common advice to play any 4 cards between a 10 and an Ace? Or is this a wrong strategy? Because it seems like most of the high hands he ran simulations on came out bad. For example even Double suited 10-J-K-K, 10-J-Q-Q, J-Q-K-K all are listed as having negative expectaions in his book.