Martin Lewis could have quietly gone away and enjoyed his wealth in the last few years, instead he's worked tirelessly campaigning to help people get through COVID and now the cost of living crisis as best they can, lobbying the Government to try and make them sit up and listen to how bad it is and is going to be.
He donated £1M of his own money to help people who's income was affected by Covid and encouraged other high net worth individuals to do the same.
He donated £100k to National Energy Action, which also raised the profile of the organisation, encouraging others to donate (I'd never heard of this organisation, but donated the £150 council tax payment) and also encouraged people who need help to contact them.
Overall, he's donated about £20M of his fortune to help people who need it.
blog.moneysavingexpert.com/2021/01/martin-lewis--what-happened-to-my-pledge-to-give-p10m-to-charity/
I don't think he is 'performing' but even if he is, he's doing a lot more to help people than most other wealthy performers out there.