If a company won't update because it really needs to depend on whether one bool compares greater to another then by all means they can stick to using 20 year old version of C++.
Other companies with modern engineering disciplines that don't write hacky code like that can benefit from a sane and sensible compiler instead of being dragged down.
Other companies with modern engineering disciplines that don't write hacky code like that can benefit from a sane and sensible compiler instead of being dragged down.