Well, personally, plunder is an important part of my advancement strategy and resource for me to evolve my city. Take this morning, for example. I had a full set of goods for doing negotiations in GBG, except Silk, I was missing silk. By plundering a few worthless lowbies I was able to quickly gather 60 Silk and continue on to have a successful GBG morning that netted me 50 forge points. As for the suppliers of my goods, they are just low time casuals who probably play the game on their phone and will quit in a few weeks when they get bored with it. So, basically the Silk is being put to much better use with me, a high activity player who buys a lot of diamonds, the kind of player that makes Innogames successful. There is a transfer of wealth from the worthless gazelles to valuable lion players. When I was a newbie like you I never got plundered because I always collected on time, and if you were not a gazelle, you would be doing the same.
Also, you should be aware that the game records from your mic and has AI to recognize the sounds of sobbing and weeping, which is stored to the servers. So, when you cry over your plundered Winter Train, it gets recorded and the devs like to listen to it later.