I think the whole argument is about timing. We could tolerate paying someone millions for a 50-60 hour working week when unemployment was 4% or 5% and even semi skilled people could make a good living gibbing walls. When the chips are down this becomes problematic, particularly when the same CEOs earn millions for putting people out of work and cutting costs to maintain the bottom line. Add the demographic bubbles of educated young muslims and 1st (or less) time employed Gen Y's wondering why they loaded up with debt to earn what the cleaner gets (or less) and suddenly a few more people than the old 'normal' think to ask some questions...

Baby boomers are looking a bit weary, their capital is avoiding risk and we are entering an expensive part of the cycle - simultaneous higher education, healthcare and welfare costs. Taxing capital is almost inevitable if and when other sources of income fail to fire up.

One thing I do find interesting is that often people who argue that the rich already pay an unfair burdon of tax tend to focus on share of tax paid rather than share of income (including capital gains) earned. Methinks there is an obvious reason for this?

The only troubling bit is that like all pendulums it may well swing too far the other way.