Come to think if it, there is a very easy way for a politician/Prime Minister to gain popularity and approval. He/she could lower taxes, raise pensions and benefits, vote lots of money to all the things that give him/her a good standing as a philanthropist upholding Christian values and supporting his citizens to have the standard of living they would like to attain.
Then he/she could give up office and retire to a comfortable living on the after-dinner circuit and join the boards of all the companies who would be keen to have such a marvellous chap/chapess on their board, while his/her successor in the job (whether of his own party or another) would then have to do all the unpopular stuff that he/she had avoided, and become highly UNpopular for raising taxes again, cutting benefits, raising the interest on any kind of loans, putting in place curbs on public spending and services, making alcohol, cigarettes and any kind of fun too expensive for anyone to afford - and generally get a bad name.
There are two reasons why anyone would do things that make them appear more mingy than Scrooge, when they could look generous, open-handed and virtuous.
1) They are Satan incarnate and just enjoy being vicious (that theory has been expounded in the forums at length)
2) They feel it is worth being unpopular to do difficult things that they believe will prove of benefit to the country in the longer term.
Time will tell.