Ha ha, you're making laughably unfair comparisons. £2k tax free earnings so that the poorest paid can attempt to afford to survive or a multi billion profit making company that pays millions to tax avoiding (evading, you say tomato I say legally evading) experts to hide, offset, transfer to make believe shell companies in havens such as those that the UK in particular allow to exist that are only available to to the super wealthy companies / individuals and scratch the backs of your derided legislators (which yes, would be great if they were uncorruptible and had a back bone). Certainly immoral to me.
To join you in a comparison, it's like letting one cyclist use a seat on his bike and then turning a blind eye letting another cyclist use his seat but also jack up on every yet to become illegal drug / substance / tue and say its valid and not immoral. That comparison has no bearing on the rest of a nation however and doesn't require millions of others to shoulder the burden of the drugged up cyclist who is out there celebrating his wins with gallons of champagne and yachts.
Lastly, whether you're happy with the fact that said author never worked for HMRC, PwC or Deloitte and thus should never make any comment on anything related to tax then that's your personal limitation I would say. Why are you discussing it? Or are you in fact an expert in taxation??