Ye
Yes you are right ..i also think my refusal main grounds applied with family..but many people at that time saying like apply with family they consider family applications..so what do you think if we apply now alone they consider my app or refused again ..I have seen cases on this forum as well who just visited the USA and came back and applied for Canada visa from Pakistan. Their visa number and passport request were executed within 3 weeks and 1 month at maximum. That is pretty quick otherwise it takes months. It does make sense only in your mind it is better to go there as the whole family. However , a visa officer will perceive it as a permanat settlement with that kind of money. All these cars and property can be sold any time and money can be transferred but leaving wife and kid behind may act home ties. Maybe you should visit Canada first then apply for your wife and kid later and you stay in Pakistan whie filing their applications. Once their visas are granted, you all can travel together. Your home ties are weak ties. Since you have already applied for refusal notes, you will already know what you have to do next time.
The link I share above it clearly asks for source of funds. If you are working for xyz company, salary slips and employment letter will prove that.