Don't change the reward but explain this.

Miner = the one who mines , deserves the reward - good
Staker = just keeps money in wallet and stake- gets interest
Masternode = Run a VPS and also submit a collateral as security ensuring that it keep running the VPS to serve as a node to service the network. = How come its not doing the actual work?

I really need to understand this, so please explain.

And as always, looking forward to witness swipp become a big coin and get listed on a new exchange asap.
Thanks.