CryptoMarketcap Vs Apple Market cap

The current market cap for crypto market is $620 billion USD, and the market cap of Apple is $900 billion USD. This market cap exceeds the market cap of Apple in the beginning of year 2017. but is this market cap justified ?

Do these cryptos have same intrinsic value as apple ?

Some analyst predicted "Bitcoin market cap to overtake Apple in five years",but looking at the current scenario it may reach that in 5 minutes. Is it everyone's jealous to make quick buck which made cryptos price to sky rocket ?

Apple provided mobile handsets, laptops and other gadgets to almost every country in the world.
50% of my office mates have apple devices or gadgets, so its market cap is justified.
What have these cryptocurrencies provided to reach these heights. Is it working on only 2 factors , greed and fear ?
If so, then surely it is headed for a big fall or it may not as this may the the beginning of new Era of Financial transformation in word.

Any Suggestions are welcome .