I would agree with your general sentiment Duncer. The revelation of what the MPs had been up to for years,with the majority overclaiming to the tune of thousands per year, the lax audit process, the assumption that because they were an MP they would be "honorable" - all this privilege, all this income that was untaxed - absolutely disgusting.
And you are right - a few sacrificial lambs were staked out, put on trial, but by and large they were let off with a slap on the wrist. Examples of such bad behaviour being rewarded can be seen in successive governments, with people like Mandelson flitting in and out of cabinet.
There is another scandal bubbling under as well, regarding Michael Mates MP. Currently running for election in Hampshire as a Police Commissioner, he was the lucky recipient of around an estimated £80,000 - this from the purchase of a flat he was renting - a flat that offered preferential rents for MPs in the first place, and of course that rent paid via expenses by the tax payer. The flats were put on sale, and the new owners, keen to get the MPs out, offered a big cash bonus if they were to leave.
So he trousers £80K, having lived at the taxpayers expense in a swanky flat in central london - and nothing is done.
And their expenses are virtually back to the levels they were at prior to the scandal - £90 million or so annually, split between the 650 or so MPs.....