We Deserve Better

Conservative MP, Mark Menzies, has today quit the Tory Party and stepped down as an MP after being accused of misusing campaign funds which means since the 2019 election, there have been multiple serious allegations levelled against serving MPs, the people who make the laws.
The allegations include drugs taking, corruption, anti-Semitism, Islamophobia, sexting, sex harassment, child-sex offences, rape, thuggery, domestic violence, bullying, serial groping, fraud, perverting the course of justice, drunken yobbery, watching porn in the Commons, attending the Commons while knowingly infected with Covid, handing MPs’ private details to a blackmailer and now misusing donor funds...and these are just the ones i can remember off the top of my head which which we know about!
My question would be why does the job of an MP attract a disproportional larger amount of thugs, liars, perverts and crooks than other professions and my second question would be why can’t we do better than the shower of miscreants we currently have?