Earning through the peer to peer hiring process is a way to increase the engagement of those who already have found jobs through the platform since they will try and find friends who are looking for jobs and encourage them to use the system.
Employees earning referral fees whenever a friend they referred to the company gets hired is a normal thing. This platform improves that system because you can refer any friend you know to an open job available through the platform, not necessarily your employer.
The more friend's you invited, the known of the project is getting bigger also. Because encouraging a friend can also help to encourage his/her friend's too. When that happens there will be a more open job available to every company and jobless people have the opportunity to be hired as an employee.