How can SaaS be helpful to Salesforce?

As SaaS is a subscription based, customers can always choose not to renew if they are dissatisfied. Customers can avoid a large initial investment in an IT infrastructure and day to day hustle of maintaining infrastructure. SaaS customer provides same provider infrastructure and also easy integration.

Salesforce is actually a SaaS itself, meaning it's a Software as a Service platform. SaaS is beneficial to Salesforce in several ways. For starters, it allows Salesforce to deliver its services over the internet, so customers don't have to install or maintain any software. This makes Salesforce very accessible and easy to use.
Additionally, since Salesforce is a SaaS, it can provide automatic updates and improvements to its software without the need for customers to manually upgrade. And because it's all online, Salesforce can easily scale its services to meet the needs of any size business. So in a nutshell, SaaS is kind of the backbone of what makes Salesforce so successful and user-friendly. Hope this answers your question!