While true, you do have to ask how the hell there could possibly be 100 MB of just code.
Consider Windows calculator. In Windows 10, it consumes 15+ MB of RAM. When desktops have 8+ GB of RAM, 15 MB is essentially nothing. And yet, 15 MB is an astronomical amount of RAM considering the functionality Calculator offers. There's really no reason it should be more than a couple hundred kilobytes.
I didn't have a look at the code but the binaries aren't just code. Apart from things like embedded icons and stuff, there can be lots of engine embedded resources inside;
Consider Windows calculator. In Windows 10, it consumes 15+ MB of RAM. When desktops have 8+ GB of RAM, 15 MB is essentially nothing. And yet, 15 MB is an astronomical amount of RAM considering the functionality Calculator offers. There's really no reason it should be more than a couple hundred kilobytes.