"Highly corrected" does not imply good bokeh at all, it just means that spherical aberration is well corrected. As it happens (over-)correction of SA tends to cause terrible bokeh and some of the prettiest bokeh you'll see comes from lenses with severely under-corrected SA. The SA causes the edges of the highlight discs to be softly rounded off; exactly correcting for SA results in sharp-edged bokeh and over-correcting SA (a common approach to getting a bit more sharpness) results in nisen-bokeh, i.e. line doubling because the edges of the highlight discs are brighter than their centres.
If you want the ultimate in bokeh, you need to use an apodisation filter by the aperture, e.g. Minolta's 135 STF.