It's really not clear that crypto is disproportionately used for criminal activity, in fact there's evidence it might be less commonly used for criminal activity
https://www.forbes.com/sites/haileylennon/2021/01/19/the-fal...
https://www.forbes.com/sites/haileylennon/2021/01/19/the-fal...
And there are at least some online businesses that accept crypto, certainly security focused services like Mulvad and ProtonMail but I’ve occasionally seen it for other SaaS products too, although not too often.