It's all about supply and demand. The big tech companies want the best engineers in the world and they are willing to pay for them as their value and return on

It's all about supply and demand. The big tech companies want the best engineers in the world and they are willing to pay for them as their value and return on investment is what makes them the top revenue companies in the world. If the companies in Vancouver wanted top talent they would need to increase compensation in terms of salary, bonuses, stock options, etc. and insure the community around the business is modern and high tech. As a top engineer you have the choice to go where ever the best challenges and compensation are. If you have over 10 years experience in a field and very good at what you do you should be paid exceptional well for it. As the value you bring to the company you work for makes the bottom line meter move upwards and you bring innovation and help move the company forward. Mix a couple of teams of top quality and value engineers and you get products and services that the entire world wants to use. Talent also attracts talent, so if your company has very well known engineers working there that are very well known and respected in their fields other engineers will follow.