This is an exceptional salary for the UK.
150k a year puts you in the 1% earners in UK, plenty to comfortable live on.
As you mentioned, having such a job in ones CV can only help.
But, I've been a Chelsea fan for most of my life, if I take such a job at Arsenal and do it properly, I'll be actively working against the organization that brought me so many emotions over the past 30ish years.
But I’m pretty sure Brad got Jonah Hill for much less.