Clock noon already isn't the midpoint of the working day (9-5) for many people. I don't think anyone cares about it being when the sun is at its highest in the sky either. This isn't even something most people know, and it's not even true unless you live on the Greenwich meridian or n*15 degrees east or west. What matters is how early we have to get up in winter vs early we have to go to bed in the summer.

I've always been in favour of keeping the clocks at non-DST all year, but now I have a new proposal: keep them at DST and just hibernate in the winter. Work an hour or two less in the winter when it's miserable.