Your source says " we now know the answers about the potential class of 2015. Around one in four (26 per cent) of new candidates contesting the 2015 general election are political professionals currently working as advisers, researchers, party officials, trade unionists or lobbyists."
So not "sitting MPs"
It does not even say what "real jobs" they may have done before taking up an interest in politics
Being an article in the Daily Torygraph, it slips in a smear that a person who is a Trade Unionist does not have a "real job."
So your reply is false.
You didn't even read the article yourself, did you.
You took an article from a right-wing source that had been written with deliberate bias, and then you even misrepresented what it said.
Which fake news propaganda website did you copy it from?