Keep in mind that, unlike cabled Ethernet, WiFi is a shared medium. Faster transfers also means your device uses less airtime for the same transfer speed. This is especially relevant in dense urban areas, where it's not unusual to see tens or even hundreds of WiFi networks sharing the same few channels.
Eh, seems like the wrong solution if that's the real problem. Building in some signal strength/topology intelligence to weaken the signal would be a better approach.
