Evolution RAM-waste of 120 MB

This "BUG" affects the hidden evolution programs. Therfore I captured a screenshot from gnome-system-monitor to show the problem.

I don't use evolution and no other kind of calendar or mobile sync programs. So I was wundering why evolution uses 120 MB RAM!

I disabled the hole evolution garbage with the following command and had no side-effects:
sudo mv /usr/lib/evolution/ /usr/lib/evolution-disabled/

If you can solve this RAM-waste the propper way, this would be very appreciated! Please keep in mind than with Ubuntu 14.04 the RAM-waste of evolution was about 40MB.

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: gnome-system-monitor 3.18.2-1ubuntu1
ProcVersionSignature: Ubuntu 4.13.0-36.40~16.04.1-generic 4.13.13
Uname: Linux 4.13.0-36-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.15
Architecture: amd64
CurrentDesktop: Unity
Date: Sun Mar 11 14:23:55 2018
ExecutablePath: /usr/bin/gnome-system-monitor
SourcePackage: gnome-system-monitor
UpgradeStatus: No upgrade log present (probably fresh install)