Boeing Co. depends on lease companies that depend on airlines that depend on passengers. Microsoft Corp. either depends on computer makers that depend on corporate customers that ultimately depend on consumers or it depends on consumers straightaway. The problem is that consumer wealth as a fraction of overall wealth is decreasing at an alarming rate. In the past 10 to 15 years, the world has witnessed a massive and unprecedented transfer of capital from the consumer to the corporate sector. But if consumers don't have the money to spend, prices will go flat or even fall.
Lower prices mean less revenue.
Less revenue will mean less profit. Less profit will probably mean less return on capital. This will send investors fleeing from stocks. The market can't absorb them. And selling phone services to the rich won't be enough.