Paid so less to Do so much ?

I got an interview call this Friday from a fairly reputed anti virus company. Their job profile goes something like this -

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* Strong knowledge of the Windows Operating System (file system, registry, network
configuration, security, etc.)
* Basic proficiency in a programming language (such as C or C++)
* Very good knowledge on x86 Assembly Instructions and Reverse Engineering
* Virus analysis knowledge is essential
* Good understanding of various File formats such as PE, NE, OLE, ELF,etc.
* Network protocols (TCP/IP, UDP, FTP, HTTP, ICMP, etc);
* Knowledge about Disassemblers and Debuggers such as IDAPro, SoftICE, WinDBG
* Self-motivated and adaptable to learning new skills
* Knowledge about Malware Analysis
* Should have the solid understanding of computer virus, exploits, and shell code
* Great passion about researching and reverse engineering malware
* Candidates should have the ability to work in a group of talented virus analysts and
researchers.
* Requires writing virus analyst reports and producing virus signatures.
* This position will be required to perform well under stress in virus emergency response s situations
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Okay!... sounds good. The list contains definitely contains some of the things I've tried/done a little for leisure in the past. Its way hardcore that what I'm doing now to make a living. But wait, here's the catch - the pay sucks!. The company is offering me something which is like 50% less than what i get now :-P. I would have settled for the same pay or something slightly lesser than my current pay for the job. I still can't understand why folks in the IT service companies get paid so much when compared to core technology companies where core technical skills are not given "much" emphasis.