Since we are talking numbers, I am gonna do some hypothetical calculation.
Lets assume two employees A and B, their numbers are as follows:
A - $150k Salary + $150k RSU -> TOTAL = $300k
B - $150k Salary + $30k RSU + $120k cash bonus -> TOTAL = $300k
Also lets assume the year is 2017, specifically around Oct 2017 when AMZN price was ~$1000 ($1002 on Oct 13 2017)
With a price of $1000, A gets 150 RSU Units and B gets 30 RSU Units
Price of A's RSU on Nov 3 2021 - $3384 * 150 = $507,600
Price of B's RSU on Nov 3 2021 - $3384 * 30 = $101,520
Difference (A - B) = $406,080
You can say that share prices can go down, and then B's 120k cash bonus looks good. But that hasn't really been the case with Amazon. In fact, Amazon is so sure of their stock price going up that they by default include a 15% yoy increase when doing year end compensation reviews.
Furthering this hypothetical calculation, if B had also had an offer from Google with the following numbers:
$150k Salary + $100k RSU + $0 Bonus = Total $250k [Obviously B took Amazon's offer over Google's because of 50k difference]
As per GOOG price on Oct 13 2017, B would have received $100,000 / $989 = ~101 RSU
On Nov 3 2021, B's RSUs are worth = $2,935.80 * 101 = ~$296,515
Even after taking an offer that is $50,000 less, the cash bonus would still have been insufficient.
There are also other policies at Amazon which would have affected B's total compensation. For example,
- Amazon's 401k match policy is 50% match on the first 4% of base salary and Match vests only after 3 years. Amazon's base salary in Seattle is also capped at $160k. So max 401k match is $3200. Given the vesting schedule, Total 401k match received after 3 years = $9600
- Google on the other hand matches 50% of your contributions up to the IRS limit per calendar year. That is $9750. There is no 401k vesting at Google, so Total 401k match received after 3 years = $29250
All this is of course very simplistic calculations and a job has 100 other factors that are important (scope, team etc) but I would not call this "not an issue" like you said in your comments.
Please correct me if the calculations are wrong, but it looks like (4 years ago) taking a lower offer at Google seems like a better idea than Amazon.