Must the Workers Control Parliament?

Some are obviously capitalists (more in America than in Britain), eg ex-PM Cameron and ex-MP Zac Goldsmith, rich men with nothing else to do. Most will be workers on the make as one way to get out of the working class (in the broad sense of all those excluded from ownership of means of production and so forced by economic necessity to sell their mental and physical energies for a wage or a salary) and become capitalists themselves. Some will be sincere reformists.When in government, their role is to manage the affairs of the capitalist class as a whole, inevitably in the interest  of the capitalist class by giving priority to profits and conditions for profit-making. Politicians in office have been described as the middle managers of international capitalism. The capitalist class like elections as it ensures that the same group of politicians are not permanently in office and so develop sticky fingers at their expense. This will be one reason why they are concerned about the fate of the Labour Party — they need a viable alternative team to take over the reins of office from time to time.

"Some are obviously capitalists (more in America than in Britain), eg ex-PM Cameron and ex-MP Zac Goldsmith, rich men with nothing else to do."Did Cameron live off his father, the stockbroker, before becoming a politician?"When in government, their role is to manage the affairs of the capitalist class as a whole, inevitably in the interest  of the capitalist class by giving priority to profits and conditions for profit-making."Are politicians, like Theresa May for example, economically exploited? They don't create value,  right?

Politicians who receive a salary are salaried workers like any other: it's just they have a slightly complex interview process.  If, after they cease to be an MP, they don't have property to fall back on, they will have to get another job.

Unless she has enough personal capital to live on and not work~: yes.  The main point is that tehe is a clear pension now, as Private Eye has demonstrated in its coverage of erevolving doors: top flight politicians are guaranteed consultancies, directorships and the speaking circuit, ultimately, those are forms of channelling surplus value to loyal servants.

It is in the interest of her class, that does not necessarily mean it is in the interest of her.

"Class interests" only make sense on the level of the class as a whole, not on the level of individuals.

But then wouldn't we have to say that about all those working in the state sector?