What RIAA should do is promote universal use of ReplayGain across digital distribution platforms. That way people can manage relative volume as desired without the need to corrupt the audio. They could make money with a signed tag certifying the mix meets quality standards.
The ideal solution would be to distribute high dynamic range audio with metadata to configure optional playback-time dynamic range compression for noisy listening environments or weak playback equipment.
Or make a sound format (like video containers) that could have two separate mixes of a track.