Am i seeing things?

As an owner of an OPC car (P plate) and a motorcyclist who rides frequently (Class 2), I’ve noticed that many Malaysian riders use illegal modifications such as excessively loud pipes, illegal overhead lights, colorful underglow lights, and even unconventional license plates with phrases like “MALAYSIA 1” or “RELEKS BRO.” They often engage in dangerous behaviors, such as speeding recklessly on minor roads, and some even evade speed cameras without being apprehended. However, I’ve observed that the Traffic Police (TP) often target Bangladeshi workers speeding with their lorries or Singaporeans for minor infractions like having tinted helmets or windscreens instead. Why is this the case? How can the TP focus on such minor issues while so many dangerous motorists seem to go unnoticed? Am i the only one noticing this? Like how is TP going to catch a "fake license" vehicle?