good point. but even the guy who chooses to go the indexing route has to make some allocation decisions. stocks vs bonds at the very least. professional financial planners (as opposed to money managers) can be helpful with that, but these are pretty basic decisions one can make on his or her own.
i suppose there are degrees of active management. allocating between stocks and bonds and different countries is a pretty low level of activity, imo. and besides, this is an individual doing it on his or her own-- a big difference from paying someone fees to make these basic decisions. sticking with the bread and butter diversified products out there, the SPYs (MDY even better), EEMs, etc. and you will have trouble underperforming.
digressing a bit, but i consider the markets no different than a casino. better odds for the most part, but its calculated risk taking. if you bought at NAS 5000, your odds are like vegas slots. if you bought SPX 666, your odds are much better. The Nikkei 225 has gone nowhere for almost three decades. trading>investing if you have what it takes. and the individual investor has a huge advantage over institutions in this game. jmho