Yes indeed - and our system is very much built on the premise that is is "better to let 10 guilty men go free than to let 1 innocent man be jailed". Other criminal systems do not take that approach - such as in China where the conviction rate is something like 98% and trials are basically a foregone conclusion heavily stacked in the prosecution's favour - the philosophy there is to maximize convictions at the expense of locking up many innocent people in the process. It is very much a legal expression of a more collectivist culture and political philosophy. 

In Canada, individualism and individual rights against government power come first, so the system heavily favours the accused, both with the presumption of innocence, and the fact that the entire burden of proof rests on the Crown (i.e. the accused doesn't have to prove his innocence in court because he is already considered innocent and it is entirely on the Crown to bring the case for guilt).