In the closing stages he had lost his rears, he described them as feeling like two flat tyres. Should he have simply yielded to Maldonado? Of course not, every point counts and you never know what might happen to your opponent before the chequered flag.
Did he squeeze Maldonado off the track? No, he left the mandatory car's width in the braking zone and then if your opponent tries to go around the outside of a tight corner he's likely to run out of space, that's perfectly normal. Should Lewis have left more space for Maldonado? Absolutely yes, especially for him given their history together, but the layout of the track there means he couldn't run very far off line as a tight left hander followed immediately. But the bottom line is that Maldonado speared at a sharp angle into the side of Hamilton's car having just recovered from fully off the race track. The throttle pedal works both ways, and this was a particularly stupid accident anyway because he was guaranteed to pass the McLaren any time soon. Apparently Williams had implored him on the radio not to take risks, and he is very lucky not to be carrying a heavy grid penalty to Silverstone.