Things don't change until there's an election. We had to wait till the next election to get the Liberal Coalition booted out. By that time, even more damage had been done. What I'm asserting is that once it was recognized that conscription was going to be damaging to young guys, and going to war in Vietnam was not such a good idea, then that's when something should have been done, and not waiting till 1972 to do something. If it was not good in '72, then why was it good in '65?. In only seven short years, voters had realized they had been totally stupid continuing to vote the Coalition in, and when they stopped, they still didn't feel guilty enough to force the government to give compensation to the conscripts.
Conscription has never been popular in Australia, and there was doubts about our involvement in Vietnam from early on, no one even knew where Vietnam was. Many lives were lost, all for nothing. There should have been accountability outside of the electoral process. Voters were ignorant beyond belief, and Liberal politicians had mush for brains.
A complete and thorough assessment of all the future consequences needed to be looked at BEFORE getting involved. Chances are, based on the '72 election result, we would have decided we'd have no conscription, and only very limited involvement with the US in Vietnam.
Informed and educated foresight wasn't really a virtue of any voter or politician then, was it? Is it a virtue today? I haven't seen much lately.