Your numbers are way out of whack.
Northern Gateway alone would provide quoting Macleans:
"would yield about half a percentage point in added annual GDP between the pipeline’s opening and 2048; about 900,000 man-years of employment, including 400,000 in Alberta and a quarter-million in B.C.; and over $98 billion in government revenue, almost half of which would go to Ottawa".
If the BC natural gas pipelines and associated LNG plants fail to materialize, Northern Gateway gets scrubbed and XL and a few other pipelines are blocked the long term numbers could literally hit the trillions.
Lost man years of labour would eventually be off the chart as other competing countries continously ramp up infrastructure while ours withers and crumbles.
This is a race to market salable, deliverable assets in return for a higher standard of living.
We are competeing against countries like Norway, Australia and the USA.
There is a reason Norway and Australia are both in the top 4 countries in the world to live in.
And there is a good reason why Canada isn't.
Time for folks to get off their asses and get busy developing what we are blessed with.
Or perhaps we could turn the whole vastly unpopulated and as yet undeveloped nation into a giant world national park and playground.
We could all sell espressos and trinkets to the rich foreign tourists