Lloyd George Honours Scandal

The Liberal Party is best known for corruption & the Lloyd George Honours Scandal. What was far more important, Lloyd George's greatest achievement was getting us into First World War, which was a major disaster.
PS This source, the only source found is not particularly reliable.

Lloyd George Honours Scandal
QUOTE
The Liberal politician David Lloyd George had very distinct views on the House of Lords and its members; he once famously quipped that "A fully-equipped duke costs as much to keep up as two dreadnoughts. They are just as great a terror and they last longer."1 and characterised the House of Lords as "five hundred men chosen at random from the ranks of the unemployed"2. Of course these comments were inspired by the fact that, following the election of a Liberal government in 1906, the House of Lords had been cheerfully frustrating many of the cherished reforms of the Liberal Party, a dispute that reached its peak with the clash over the so-called People's budget of 1909.3

However as we shall see, such opinions did not prevent Lloyd George from later profiting from the sale of such titles. (Any more than they prevented him from eventually accepting his own hereditary peerage as the Earl Lloyd George of Dwyfor.).........

It might well be argued that the real issue with Lloyd George's grand sale of honours was that there was no quality control exercised over the applicants, as the only criterion that appeared to matter was the ability to pay. Indeed Gregory seems to have specifically targeted wealthy but unscrupulous individuals who wished to buy themselves a little respectability. Thus Richard Williamson, a Glasgow bookmaker with a criminal record acquired a CBE, and Rowland Hodge became a baronet in 1921 despite his prior conviction for hoarding food in 1918.......

The crunch came with the announcement of the July 1922 honours list. This included the award of honours to; John Drughorn (convicted in 1915 for trading with the enemy), William Vestey (convicted of tax evasion or not - the Wikipedia admits to tax avoidance - entirely sane), and Joseph Robinson (a South African who had only recently been convicted of a £500,000 share fraud but not according to the Wikipedia). This was too much for king George who complained that "the Robinson case must be regarded as little less than an insult to Crown and to the House of Lords". It was also too much for Fleet Street who despite being the prior recipients of Lloyd George's largesse now turned against him. It didn't help that the Dukes of Sunderland [ non-existent title ] and Northumberland [ sound chap, the Wikipedia doesn't mention any scandal ] (both the targets of Lloyd George's earlier attacks) had got hold of one of Gregory's letters and cheerfully read out the contents in the upper House.
UNQUOTE
Crooked is the word that springs to mind.