Fully rugged controls

are not just necessary for military or LEA applications. While we would all prefer flying only in fair weather, that's not always the case, especially where the conditions are different in the operators' position from where your remote vehicle is going to be. Waterproof and dustproof controls, sealed system modules can be imperative in various operating scenarios, and this has to be considered for every single component or technical solution in any given ground control station.
Environmental temperatures can range from -20°C to +45°C in many areas of the world even at "moderate" climates nowdays, which does affect all parts of the system. Thermal management is not a trivial issue when you need to seal a waterproof enclosure.