Not everyone that has a large following on Linkedin will automatically attract clients.

However, all of those professionals have parents and loved ones that are candidates for senior care. Although they are not actively looking now, you are now on their radar and when the need arises they will come to you first.

Linkedin is a B2B platform but remember that all those B's are also C's. They are working to finance their consumption. So cast a strategic net and connect with a everyone in or near your space and let the magic begin.