A counter-example would be Bardet who had a different sort of send-off last week when the peloton did a sort of guard of honor for him before his final stage in the Dauphiné. He's also much younger than Froome and he retired because he could no longer win.
So whilst it's difficult to condemn Froome for his greed (who knows, maybe Froomey is an anti-hero or something for taking Adams' money), he's definitely not helped his image - at all.
He's a long way from guys like Indurain who stepped off the bike because his moment had come. And Froome was no Valverde either, i.e. it was abundantly clear he was cooked 5 years ago and wouldn't come close to winning anything (despite praise for his Alpe state in the 2022 TdF, he was still nowhere near winning that day).