Although I agree in principle with what you're saying, the 1G-FE CAN be modded if that's the route you want to take. Yes it was used back in the day in the old Toyota Crowns, but with a little tinkering (conrods, pistons and a bottom end), you can turbo/increase the compression on the 1G-FE without any probs.
Simon here in the UK has the only (known) 1G-FE TURBO (all HKS goodies including a FCON-PRO), and it's running like a dream (and quick....).